64990832975

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{809}}^1\times {\mathrm{11119}}^1$

素因数の和:11972

約数の個数: 36

約数和(自身を含む): 85721522400

約数和(自身を除く): 20730689425

約数列:

[1, 5, 17, 25, 85, 289, 425, 809, 1445, 4045, 7225, 11119, 13753, 20225, 55595, 68765, 189023, 233801, 277975, 343825, 945115, 1169005, 3213391, 4725575, 5845025, 8995271, 16066955, 44976355, 80334775, 152919607, 224881775, 764598035, 2599633319, 3822990175, 12998166595, 64990832975]

約数ペア:

[(1, 64990832975), (5, 12998166595), (17, 3822990175), (25, 2599633319), (85, 764598035), (289, 224881775), (425, 152919607), (809, 80334775), (1445, 44976355), (4045, 16066955), (7225, 8995271), (11119, 5845025), (13753, 4725575), (20225, 3213391), (55595, 1169005), (68765, 945115), (189023, 343825), (233801, 277975)]