12868700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:567

約数の個数: 72

約数和(自身を含む): 31716720

約数和(自身を除く): 18848020

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 65, 76, 95, 100, 130, 190, 247, 260, 325, 380, 475, 494, 521, 650, 950, 988, 1042, 1235, 1300, 1900, 2084, 2470, 2605, 4940, 5210, 6175, 6773, 9899, 10420, 12350, 13025, 13546, 19798, 24700, 26050, 27092, 33865, 39596, 49495, 52100, 67730, 98990, 128687, 135460, 169325, 197980, 247475, 257374, 338650, 494950, 514748, 643435, 677300, 989900, 1286870, 2573740, 3217175, 6434350, 12868700]

約数ペア:

[(1, 12868700), (2, 6434350), (4, 3217175), (5, 2573740), (10, 1286870), (13, 989900), (19, 677300), (20, 643435), (25, 514748), (26, 494950), (38, 338650), (50, 257374), (52, 247475), (65, 197980), (76, 169325), (95, 135460), (100, 128687), (130, 98990), (190, 67730), (247, 52100), (260, 49495), (325, 39596), (380, 33865), (475, 27092), (494, 26050), (521, 24700), (650, 19798), (950, 13546), (988, 13025), (1042, 12350), (1235, 10420), (1300, 9899), (1900, 6773), (2084, 6175), (2470, 5210), (2605, 4940)]