61309640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{218963}}^1$

素因数の和:218981

約数の個数: 32

約数和(自身を含む): 157654080

約数和(自身を除く): 96344440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 218963, 437926, 875852, 1094815, 1532741, 1751704, 2189630, 3065482, 4379260, 6130964, 7663705, 8758520, 12261928, 15327410, 30654820, 61309640]

約数ペア:

[(1, 61309640), (2, 30654820), (4, 15327410), (5, 12261928), (7, 8758520), (8, 7663705), (10, 6130964), (14, 4379260), (20, 3065482), (28, 2189630), (35, 1751704), (40, 1532741), (56, 1094815), (70, 875852), (140, 437926), (280, 218963)]