65260880

素因数分解:

$2^4\times 5^1\times {\mathrm{191}}^1\times {\mathrm{4271}}^1$

素因数の和:4475

約数の個数: 40

約数和(自身を含む): 152561664

約数和(自身を除く): 87300784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 191, 382, 764, 955, 1528, 1910, 3056, 3820, 4271, 7640, 8542, 15280, 17084, 21355, 34168, 42710, 68336, 85420, 170840, 341680, 815761, 1631522, 3263044, 4078805, 6526088, 8157610, 13052176, 16315220, 32630440, 65260880]

約数ペア:

[(1, 65260880), (2, 32630440), (4, 16315220), (5, 13052176), (8, 8157610), (10, 6526088), (16, 4078805), (20, 3263044), (40, 1631522), (80, 815761), (191, 341680), (382, 170840), (764, 85420), (955, 68336), (1528, 42710), (1910, 34168), (3056, 21355), (3820, 17084), (4271, 15280), (7640, 8542)]