128369280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 256

約数和(自身を含む): 455817600

約数和(自身を除く): 327448320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 37, 39, 40, 48, 52, 60, 64, 65, 74, 78, 80, 96, 104, 111, 120, 128, 130, 139, 148, 156, 160, 185, 192, 195, 208, 222, 240, 260, 278, 296, 312, 320, 370, 384, 390, 416, 417, 444, 480, 481, 520, 555, 556, 592, 624, 640, 695, 740, 780, 832, 834, 888, 960, 962, 1040, 1110, 1112, 1184, 1248, 1390, 1443, 1480, 1560, 1664, 1668, 1776, 1807, 1920, 1924, 2080, 2085, 2220, 2224, 2368, 2405, 2496, 2780, 2886, 2960, 3120, 3336, 3552, 3614, 3848, 4160, 4170, 4440, 4448, 4736, 4810, 4992, 5143, 5421, 5560, 5772, 5920, 6240, 6672, 7104, 7215, 7228, 7696, 8320, 8340, 8880, 8896, 9035, 9620, 10286, 10842, 11120, 11544, 11840, 12480, 13344, 14208, 14430, 14456, 15392, 15429, 16680, 17760, 17792, 18070, 19240, 20572, 21684, 22240, 23088, 23680, 24960, 25715, 26688, 27105, 28860, 28912, 30784, 30858, 33360, 35520, 36140, 38480, 41144, 43368, 44480, 46176, 51430, 53376, 54210, 57720, 57824, 61568, 61716, 66720, 66859, 71040, 72280, 76960, 77145, 82288, 86736, 88960, 92352, 102860, 108420, 115440, 115648, 123432, 133440, 133718, 144560, 153920, 154290, 164576, 173472, 184704, 200577, 205720, 216840, 230880, 231296, 246864, 266880, 267436, 289120, 307840, 308580, 329152, 334295, 346944, 401154, 411440, 433680, 461760, 493728, 534872, 578240, 617160, 658304, 668590, 693888, 802308, 822880, 867360, 923520, 987456, 1002885, 1069744, 1156480, 1234320, 1337180, 1604616, 1645760, 1734720, 1974912, 2005770, 2139488, 2468640, 2674360, 3209232, 3291520, 3469440, 4011540, 4278976, 4937280, 5348720, 6418464, 8023080, 8557952, 9874560, 10697440, 12836928, 16046160, 21394880, 25673856, 32092320, 42789760, 64184640, 128369280]

約数ペア:

[(1, 128369280), (2, 64184640), (3, 42789760), (4, 32092320), (5, 25673856), (6, 21394880), (8, 16046160), (10, 12836928), (12, 10697440), (13, 9874560), (15, 8557952), (16, 8023080), (20, 6418464), (24, 5348720), (26, 4937280), (30, 4278976), (32, 4011540), (37, 3469440), (39, 3291520), (40, 3209232), (48, 2674360), (52, 2468640), (60, 2139488), (64, 2005770), (65, 1974912), (74, 1734720), (78, 1645760), (80, 1604616), (96, 1337180), (104, 1234320), (111, 1156480), (120, 1069744), (128, 1002885), (130, 987456), (139, 923520), (148, 867360), (156, 822880), (160, 802308), (185, 693888), (192, 668590), (195, 658304), (208, 617160), (222, 578240), (240, 534872), (260, 493728), (278, 461760), (296, 433680), (312, 411440), (320, 401154), (370, 346944), (384, 334295), (390, 329152), (416, 308580), (417, 307840), (444, 289120), (480, 267436), (481, 266880), (520, 246864), (555, 231296), (556, 230880), (592, 216840), (624, 205720), (640, 200577), (695, 184704), (740, 173472), (780, 164576), (832, 154290), (834, 153920), (888, 144560), (960, 133718), (962, 133440), (1040, 123432), (1110, 115648), (1112, 115440), (1184, 108420), (1248, 102860), (1390, 92352), (1443, 88960), (1480, 86736), (1560, 82288), (1664, 77145), (1668, 76960), (1776, 72280), (1807, 71040), (1920, 66859), (1924, 66720), (2080, 61716), (2085, 61568), (2220, 57824), (2224, 57720), (2368, 54210), (2405, 53376), (2496, 51430), (2780, 46176), (2886, 44480), (2960, 43368), (3120, 41144), (3336, 38480), (3552, 36140), (3614, 35520), (3848, 33360), (4160, 30858), (4170, 30784), (4440, 28912), (4448, 28860), (4736, 27105), (4810, 26688), (4992, 25715), (5143, 24960), (5421, 23680), (5560, 23088), (5772, 22240), (5920, 21684), (6240, 20572), (6672, 19240), (7104, 18070), (7215, 17792), (7228, 17760), (7696, 16680), (8320, 15429), (8340, 15392), (8880, 14456), (8896, 14430), (9035, 14208), (9620, 13344), (10286, 12480), (10842, 11840), (11120, 11544)]