1997651240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{11071}}^1$

素因数の和:11442

約数の個数: 64

約数和(自身を含む): 4854850560

約数和(自身を除く): 2857199320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 347, 520, 694, 1388, 1735, 2776, 3470, 4511, 6940, 9022, 11071, 13880, 18044, 22142, 22555, 36088, 44284, 45110, 55355, 88568, 90220, 110710, 143923, 180440, 221420, 287846, 442840, 575692, 719615, 1151384, 1439230, 2878460, 3841637, 5756920, 7683274, 15366548, 19208185, 30733096, 38416370, 49941281, 76832740, 99882562, 153665480, 199765124, 249706405, 399530248, 499412810, 998825620, 1997651240]

約数ペア:

[(1, 1997651240), (2, 998825620), (4, 499412810), (5, 399530248), (8, 249706405), (10, 199765124), (13, 153665480), (20, 99882562), (26, 76832740), (40, 49941281), (52, 38416370), (65, 30733096), (104, 19208185), (130, 15366548), (260, 7683274), (347, 5756920), (520, 3841637), (694, 2878460), (1388, 1439230), (1735, 1151384), (2776, 719615), (3470, 575692), (4511, 442840), (6940, 287846), (9022, 221420), (11071, 180440), (13880, 143923), (18044, 110710), (22142, 90220), (22555, 88568), (36088, 55355), (44284, 45110)]