1987391360

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:209

約数の個数: 256

約数和(自身を含む): 5274460800

約数和(自身を除く): 3287069440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 37, 40, 41, 46, 64, 74, 80, 82, 89, 92, 115, 128, 148, 160, 164, 178, 184, 185, 205, 230, 296, 320, 328, 356, 368, 370, 410, 445, 460, 592, 640, 656, 712, 736, 740, 820, 851, 890, 920, 943, 1184, 1312, 1424, 1472, 1480, 1517, 1640, 1702, 1780, 1840, 1886, 2047, 2368, 2624, 2848, 2944, 2960, 3034, 3280, 3293, 3404, 3560, 3649, 3680, 3772, 4094, 4255, 4715, 4736, 5248, 5696, 5920, 6068, 6560, 6586, 6808, 7120, 7298, 7360, 7544, 7585, 8188, 8510, 9430, 10235, 11392, 11840, 12136, 13120, 13172, 13616, 14240, 14596, 14720, 15088, 15170, 16376, 16465, 17020, 18245, 18860, 20470, 23680, 24272, 26240, 26344, 27232, 28480, 29192, 30176, 30340, 32752, 32930, 34040, 34891, 36490, 37720, 40940, 48544, 52688, 54464, 56960, 58384, 60352, 60680, 65504, 65860, 68080, 69782, 72980, 75440, 75739, 81880, 83927, 97088, 105376, 108928, 116768, 120704, 121360, 131008, 131720, 135013, 136160, 139564, 145960, 150880, 151478, 163760, 167854, 174455, 194176, 210752, 233536, 242720, 262016, 263440, 270026, 272320, 279128, 291920, 301760, 302956, 327520, 335708, 348910, 378695, 419635, 421504, 467072, 485440, 526880, 540052, 544640, 558256, 583840, 603520, 605912, 655040, 671416, 675065, 697820, 757390, 839270, 970880, 1053760, 1080104, 1116512, 1167680, 1211824, 1310080, 1342832, 1350130, 1395640, 1514780, 1678540, 2107520, 2160208, 2233024, 2335360, 2423648, 2685664, 2700260, 2791280, 3029560, 3105299, 3357080, 4320416, 4466048, 4847296, 5371328, 5400520, 5582560, 6059120, 6210598, 6714160, 8640832, 9694592, 10742656, 10801040, 11165120, 12118240, 12421196, 13428320, 15526495, 17281664, 21602080, 22330240, 24236480, 24842392, 26856640, 31052990, 43204160, 48472960, 49684784, 53713280, 62105980, 86408320, 99369568, 124211960, 198739136, 248423920, 397478272, 496847840, 993695680, 1987391360]

約数ペア:

[(1, 1987391360), (2, 993695680), (4, 496847840), (5, 397478272), (8, 248423920), (10, 198739136), (16, 124211960), (20, 99369568), (23, 86408320), (32, 62105980), (37, 53713280), (40, 49684784), (41, 48472960), (46, 43204160), (64, 31052990), (74, 26856640), (80, 24842392), (82, 24236480), (89, 22330240), (92, 21602080), (115, 17281664), (128, 15526495), (148, 13428320), (160, 12421196), (164, 12118240), (178, 11165120), (184, 10801040), (185, 10742656), (205, 9694592), (230, 8640832), (296, 6714160), (320, 6210598), (328, 6059120), (356, 5582560), (368, 5400520), (370, 5371328), (410, 4847296), (445, 4466048), (460, 4320416), (592, 3357080), (640, 3105299), (656, 3029560), (712, 2791280), (736, 2700260), (740, 2685664), (820, 2423648), (851, 2335360), (890, 2233024), (920, 2160208), (943, 2107520), (1184, 1678540), (1312, 1514780), (1424, 1395640), (1472, 1350130), (1480, 1342832), (1517, 1310080), (1640, 1211824), (1702, 1167680), (1780, 1116512), (1840, 1080104), (1886, 1053760), (2047, 970880), (2368, 839270), (2624, 757390), (2848, 697820), (2944, 675065), (2960, 671416), (3034, 655040), (3280, 605912), (3293, 603520), (3404, 583840), (3560, 558256), (3649, 544640), (3680, 540052), (3772, 526880), (4094, 485440), (4255, 467072), (4715, 421504), (4736, 419635), (5248, 378695), (5696, 348910), (5920, 335708), (6068, 327520), (6560, 302956), (6586, 301760), (6808, 291920), (7120, 279128), (7298, 272320), (7360, 270026), (7544, 263440), (7585, 262016), (8188, 242720), (8510, 233536), (9430, 210752), (10235, 194176), (11392, 174455), (11840, 167854), (12136, 163760), (13120, 151478), (13172, 150880), (13616, 145960), (14240, 139564), (14596, 136160), (14720, 135013), (15088, 131720), (15170, 131008), (16376, 121360), (16465, 120704), (17020, 116768), (18245, 108928), (18860, 105376), (20470, 97088), (23680, 83927), (24272, 81880), (26240, 75739), (26344, 75440), (27232, 72980), (28480, 69782), (29192, 68080), (30176, 65860), (30340, 65504), (32752, 60680), (32930, 60352), (34040, 58384), (34891, 56960), (36490, 54464), (37720, 52688), (40940, 48544)]