90899170

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:555

約数の個数: 48

約数和(自身を含む): 176655168

約数和(自身を除く): 85755998

約数列:

[1, 2, 5, 10, 17, 34, 71, 85, 142, 170, 289, 355, 443, 578, 710, 886, 1207, 1445, 2215, 2414, 2890, 4430, 6035, 7531, 12070, 15062, 20519, 31453, 37655, 41038, 62906, 75310, 102595, 128027, 157265, 205190, 256054, 314530, 534701, 640135, 1069402, 1280270, 2673505, 5347010, 9089917, 18179834, 45449585, 90899170]

約数ペア:

[(1, 90899170), (2, 45449585), (5, 18179834), (10, 9089917), (17, 5347010), (34, 2673505), (71, 1280270), (85, 1069402), (142, 640135), (170, 534701), (289, 314530), (355, 256054), (443, 205190), (578, 157265), (710, 128027), (886, 102595), (1207, 75310), (1445, 62906), (2215, 41038), (2414, 37655), (2890, 31453), (4430, 20519), (6035, 15062), (7531, 12070)]