64485460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{248021}}^1$

素因数の和:248043

約数の個数: 24

約数和(自身を含む): 145836936

約数和(自身を除く): 81351476

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 248021, 496042, 992084, 1240105, 2480210, 3224273, 4960420, 6448546, 12897092, 16121365, 32242730, 64485460]

約数ペア:

[(1, 64485460), (2, 32242730), (4, 16121365), (5, 12897092), (10, 6448546), (13, 4960420), (20, 3224273), (26, 2480210), (52, 1240105), (65, 992084), (130, 496042), (260, 248021)]