81888625

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 131668992

約数和(自身を除く): 49780367

約数列:

[1, 5, 7, 13, 23, 25, 35, 65, 91, 115, 125, 161, 175, 299, 313, 325, 455, 575, 805, 875, 1495, 1565, 1625, 2093, 2191, 2275, 2875, 4025, 4069, 7199, 7475, 7825, 10465, 10955, 11375, 20125, 20345, 28483, 35995, 37375, 39125, 50393, 52325, 54775, 93587, 101725, 142415, 179975, 251965, 261625, 273875, 467935, 508625, 655109, 712075, 899875, 1259825, 2339675, 3275545, 3560375, 6299125, 11698375, 16377725, 81888625]

約数ペア:

[(1, 81888625), (5, 16377725), (7, 11698375), (13, 6299125), (23, 3560375), (25, 3275545), (35, 2339675), (65, 1259825), (91, 899875), (115, 712075), (125, 655109), (161, 508625), (175, 467935), (299, 273875), (313, 261625), (325, 251965), (455, 179975), (575, 142415), (805, 101725), (875, 93587), (1495, 54775), (1565, 52325), (1625, 50393), (2093, 39125), (2191, 37375), (2275, 35995), (2875, 28483), (4025, 20345), (4069, 20125), (7199, 11375), (7475, 10955), (7825, 10465)]