18235740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{619}}^1$

素因数の和:1122

約数の個数: 48

約数和(自身を含む): 51246720

約数和(自身を除く): 33010980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 491, 619, 982, 1238, 1473, 1857, 1964, 2455, 2476, 2946, 3095, 3714, 4910, 5892, 6190, 7365, 7428, 9285, 9820, 12380, 14730, 18570, 29460, 37140, 303929, 607858, 911787, 1215716, 1519645, 1823574, 3039290, 3647148, 4558935, 6078580, 9117870, 18235740]

約数ペア:

[(1, 18235740), (2, 9117870), (3, 6078580), (4, 4558935), (5, 3647148), (6, 3039290), (10, 1823574), (12, 1519645), (15, 1215716), (20, 911787), (30, 607858), (60, 303929), (491, 37140), (619, 29460), (982, 18570), (1238, 14730), (1473, 12380), (1857, 9820), (1964, 9285), (2455, 7428), (2476, 7365), (2946, 6190), (3095, 5892), (3714, 4910)]