63181880

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{3217}}^1$

素因数の和:3719

約数の個数: 32

約数和(自身を含む): 142493040

約数和(自身を除く): 79311160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3217, 3928, 4910, 6434, 9820, 12868, 16085, 19640, 25736, 32170, 64340, 128680, 1579547, 3159094, 6318188, 7897735, 12636376, 15795470, 31590940, 63181880]

約数ペア:

[(1, 63181880), (2, 31590940), (4, 15795470), (5, 12636376), (8, 7897735), (10, 6318188), (20, 3159094), (40, 1579547), (491, 128680), (982, 64340), (1964, 32170), (2455, 25736), (3217, 19640), (3928, 16085), (4910, 12868), (6434, 9820)]