208138960

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 160

約数和(自身を含む): 539965440

約数和(自身を除く): 331826480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 41, 46, 62, 80, 82, 89, 92, 115, 124, 155, 164, 178, 184, 205, 230, 248, 310, 328, 356, 368, 410, 445, 460, 496, 620, 656, 712, 713, 820, 890, 920, 943, 1240, 1271, 1424, 1426, 1640, 1780, 1840, 1886, 2047, 2480, 2542, 2759, 2852, 3280, 3560, 3565, 3649, 3772, 4094, 4715, 5084, 5518, 5704, 6355, 7120, 7130, 7298, 7544, 8188, 9430, 10168, 10235, 11036, 11408, 12710, 13795, 14260, 14596, 15088, 16376, 18245, 18860, 20336, 20470, 22072, 25420, 27590, 28520, 29192, 29233, 32752, 36490, 37720, 40940, 44144, 50840, 55180, 57040, 58384, 58466, 63457, 72980, 75440, 81880, 83927, 101680, 110360, 113119, 116932, 126914, 145960, 146165, 163760, 167854, 220720, 226238, 233864, 253828, 291920, 292330, 317285, 335708, 419635, 452476, 467728, 507656, 565595, 584660, 634570, 671416, 839270, 904952, 1015312, 1131190, 1169320, 1269140, 1342832, 1678540, 1809904, 2262380, 2338640, 2538280, 2601737, 3357080, 4524760, 5076560, 5203474, 6714160, 9049520, 10406948, 13008685, 20813896, 26017370, 41627792, 52034740, 104069480, 208138960]

約数ペア:

[(1, 208138960), (2, 104069480), (4, 52034740), (5, 41627792), (8, 26017370), (10, 20813896), (16, 13008685), (20, 10406948), (23, 9049520), (31, 6714160), (40, 5203474), (41, 5076560), (46, 4524760), (62, 3357080), (80, 2601737), (82, 2538280), (89, 2338640), (92, 2262380), (115, 1809904), (124, 1678540), (155, 1342832), (164, 1269140), (178, 1169320), (184, 1131190), (205, 1015312), (230, 904952), (248, 839270), (310, 671416), (328, 634570), (356, 584660), (368, 565595), (410, 507656), (445, 467728), (460, 452476), (496, 419635), (620, 335708), (656, 317285), (712, 292330), (713, 291920), (820, 253828), (890, 233864), (920, 226238), (943, 220720), (1240, 167854), (1271, 163760), (1424, 146165), (1426, 145960), (1640, 126914), (1780, 116932), (1840, 113119), (1886, 110360), (2047, 101680), (2480, 83927), (2542, 81880), (2759, 75440), (2852, 72980), (3280, 63457), (3560, 58466), (3565, 58384), (3649, 57040), (3772, 55180), (4094, 50840), (4715, 44144), (5084, 40940), (5518, 37720), (5704, 36490), (6355, 32752), (7120, 29233), (7130, 29192), (7298, 28520), (7544, 27590), (8188, 25420), (9430, 22072), (10168, 20470), (10235, 20336), (11036, 18860), (11408, 18245), (12710, 16376), (13795, 15088), (14260, 14596)]