18978030

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{70289}}^1$

素因数の和:70305

約数の個数: 32

約数和(自身を含む): 50608800

約数和(自身を除く): 31630770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 70289, 140578, 210867, 351445, 421734, 632601, 702890, 1054335, 1265202, 1897803, 2108670, 3163005, 3795606, 6326010, 9489015, 18978030]

約数ペア:

[(1, 18978030), (2, 9489015), (3, 6326010), (5, 3795606), (6, 3163005), (9, 2108670), (10, 1897803), (15, 1265202), (18, 1054335), (27, 702890), (30, 632601), (45, 421734), (54, 351445), (90, 210867), (135, 140578), (270, 70289)]