1999728975

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:349

約数の個数: 96

約数和(自身を含む): 3519774720

約数和(自身を除く): 1520045745

約数列:

[1, 3, 5, 15, 25, 43, 47, 75, 79, 129, 141, 167, 215, 235, 237, 395, 501, 645, 705, 835, 1075, 1175, 1185, 1975, 2021, 2505, 3225, 3397, 3525, 3713, 4175, 5925, 6063, 7181, 7849, 10105, 10191, 11139, 12525, 13193, 16985, 18565, 21543, 23547, 30315, 35905, 39245, 39579, 50525, 50955, 55695, 65965, 84925, 92825, 107715, 117735, 151575, 159659, 179525, 196225, 197895, 254775, 278475, 329825, 337507, 478977, 538575, 567299, 588675, 620071, 798295, 989475, 1012521, 1687535, 1701897, 1860213, 2394885, 2836495, 3100355, 3991475, 5062605, 8437675, 8509485, 9301065, 11974425, 14182475, 15501775, 25313025, 26663053, 42547425, 46505325, 79989159, 133315265, 399945795, 666576325, 1999728975]

約数ペア:

[(1, 1999728975), (3, 666576325), (5, 399945795), (15, 133315265), (25, 79989159), (43, 46505325), (47, 42547425), (75, 26663053), (79, 25313025), (129, 15501775), (141, 14182475), (167, 11974425), (215, 9301065), (235, 8509485), (237, 8437675), (395, 5062605), (501, 3991475), (645, 3100355), (705, 2836495), (835, 2394885), (1075, 1860213), (1175, 1701897), (1185, 1687535), (1975, 1012521), (2021, 989475), (2505, 798295), (3225, 620071), (3397, 588675), (3525, 567299), (3713, 538575), (4175, 478977), (5925, 337507), (6063, 329825), (7181, 278475), (7849, 254775), (10105, 197895), (10191, 196225), (11139, 179525), (12525, 159659), (13193, 151575), (16985, 117735), (18565, 107715), (21543, 92825), (23547, 84925), (30315, 65965), (35905, 55695), (39245, 50955), (39579, 50525)]