64591375

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 84262464

約数和(自身を除く): 19671089

約数列:

[1, 5, 25, 43, 61, 125, 197, 215, 305, 985, 1075, 1525, 2623, 4925, 5375, 7625, 8471, 12017, 13115, 24625, 42355, 60085, 65575, 211775, 300425, 327875, 516731, 1058875, 1502125, 2583655, 12918275, 64591375]

約数ペア:

[(1, 64591375), (5, 12918275), (25, 2583655), (43, 1502125), (61, 1058875), (125, 516731), (197, 327875), (215, 300425), (305, 211775), (985, 65575), (1075, 60085), (1525, 42355), (2623, 24625), (4925, 13115), (5375, 12017), (7625, 8471)]