218316280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1621}}^1$

素因数の和:1689

約数の個数: 128

約数和(自身を含む): 621290880

約数和(自身を除く): 402974600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 37, 40, 52, 56, 65, 70, 74, 91, 104, 130, 140, 148, 182, 185, 259, 260, 280, 296, 364, 370, 455, 481, 518, 520, 728, 740, 910, 962, 1036, 1295, 1480, 1621, 1820, 1924, 2072, 2405, 2590, 3242, 3367, 3640, 3848, 4810, 5180, 6484, 6734, 8105, 9620, 10360, 11347, 12968, 13468, 16210, 16835, 19240, 21073, 22694, 26936, 32420, 33670, 42146, 45388, 56735, 59977, 64840, 67340, 84292, 90776, 105365, 113470, 119954, 134680, 147511, 168584, 210730, 226940, 239908, 295022, 299885, 419839, 421460, 453880, 479816, 590044, 599770, 737555, 779701, 839678, 842920, 1180088, 1199540, 1475110, 1559402, 1679356, 2099195, 2399080, 2950220, 3118804, 3358712, 3898505, 4198390, 5457907, 5900440, 6237608, 7797010, 8396780, 10915814, 15594020, 16793560, 21831628, 27289535, 31188040, 43663256, 54579070, 109158140, 218316280]

約数ペア:

[(1, 218316280), (2, 109158140), (4, 54579070), (5, 43663256), (7, 31188040), (8, 27289535), (10, 21831628), (13, 16793560), (14, 15594020), (20, 10915814), (26, 8396780), (28, 7797010), (35, 6237608), (37, 5900440), (40, 5457907), (52, 4198390), (56, 3898505), (65, 3358712), (70, 3118804), (74, 2950220), (91, 2399080), (104, 2099195), (130, 1679356), (140, 1559402), (148, 1475110), (182, 1199540), (185, 1180088), (259, 842920), (260, 839678), (280, 779701), (296, 737555), (364, 599770), (370, 590044), (455, 479816), (481, 453880), (518, 421460), (520, 419839), (728, 299885), (740, 295022), (910, 239908), (962, 226940), (1036, 210730), (1295, 168584), (1480, 147511), (1621, 134680), (1820, 119954), (1924, 113470), (2072, 105365), (2405, 90776), (2590, 84292), (3242, 67340), (3367, 64840), (3640, 59977), (3848, 56735), (4810, 45388), (5180, 42146), (6484, 33670), (6734, 32420), (8105, 26936), (9620, 22694), (10360, 21073), (11347, 19240), (12968, 16835), (13468, 16210)]