1981213968

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{6971}}^1$

素因数の和:7204

約数の個数: 80

約数和(自身を含む): 5311660032

約数和(自身を除く): 3330446064

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 93, 124, 186, 191, 248, 372, 382, 496, 573, 744, 764, 1146, 1488, 1528, 2292, 3056, 4584, 5921, 6971, 9168, 11842, 13942, 17763, 20913, 23684, 27884, 35526, 41826, 47368, 55768, 71052, 83652, 94736, 111536, 142104, 167304, 216101, 284208, 334608, 432202, 648303, 864404, 1296606, 1331461, 1728808, 2593212, 2662922, 3457616, 3994383, 5186424, 5325844, 7988766, 10372848, 10651688, 15977532, 21303376, 31955064, 41275291, 63910128, 82550582, 123825873, 165101164, 247651746, 330202328, 495303492, 660404656, 990606984, 1981213968]

約数ペア:

[(1, 1981213968), (2, 990606984), (3, 660404656), (4, 495303492), (6, 330202328), (8, 247651746), (12, 165101164), (16, 123825873), (24, 82550582), (31, 63910128), (48, 41275291), (62, 31955064), (93, 21303376), (124, 15977532), (186, 10651688), (191, 10372848), (248, 7988766), (372, 5325844), (382, 5186424), (496, 3994383), (573, 3457616), (744, 2662922), (764, 2593212), (1146, 1728808), (1488, 1331461), (1528, 1296606), (2292, 864404), (3056, 648303), (4584, 432202), (5921, 334608), (6971, 284208), (9168, 216101), (11842, 167304), (13942, 142104), (17763, 111536), (20913, 94736), (23684, 83652), (27884, 71052), (35526, 55768), (41826, 47368)]