163923025

素因数分解:

$5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 239984640

約数和(自身を除く): 76061615

約数列:

[1, 5, 7, 25, 35, 71, 79, 167, 175, 355, 395, 497, 553, 835, 1169, 1775, 1975, 2485, 2765, 4175, 5609, 5845, 11857, 12425, 13193, 13825, 28045, 29225, 39263, 59285, 65965, 82999, 92351, 140225, 196315, 296425, 329825, 414995, 461755, 936703, 981575, 2074975, 2308775, 4683515, 6556921, 23417575, 32784605, 163923025]

約数ペア:

[(1, 163923025), (5, 32784605), (7, 23417575), (25, 6556921), (35, 4683515), (71, 2308775), (79, 2074975), (167, 981575), (175, 936703), (355, 461755), (395, 414995), (497, 329825), (553, 296425), (835, 196315), (1169, 140225), (1775, 92351), (1975, 82999), (2485, 65965), (2765, 59285), (4175, 39263), (5609, 29225), (5845, 28045), (11857, 13825), (12425, 13193)]