19752640

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3631}}^1$

素因数の和:3665

約数の個数: 56

約数和(自身を含む): 49816512

約数和(自身を除く): 30063872

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 3631, 5440, 7262, 14524, 18155, 29048, 36310, 58096, 61727, 72620, 116192, 123454, 145240, 232384, 246908, 290480, 308635, 493816, 580960, 617270, 987632, 1161920, 1234540, 1975264, 2469080, 3950528, 4938160, 9876320, 19752640]

約数ペア:

[(1, 19752640), (2, 9876320), (4, 4938160), (5, 3950528), (8, 2469080), (10, 1975264), (16, 1234540), (17, 1161920), (20, 987632), (32, 617270), (34, 580960), (40, 493816), (64, 308635), (68, 290480), (80, 246908), (85, 232384), (136, 145240), (160, 123454), (170, 116192), (272, 72620), (320, 61727), (340, 58096), (544, 36310), (680, 29048), (1088, 18155), (1360, 14524), (2720, 7262), (3631, 5440)]