18974940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1381}}^1$

素因数の和:1622

約数の個数: 48

約数和(自身を含む): 53400480

約数和(自身を除く): 34425540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 229, 458, 687, 916, 1145, 1374, 1381, 2290, 2748, 2762, 3435, 4143, 4580, 5524, 6870, 6905, 8286, 13740, 13810, 16572, 20715, 27620, 41430, 82860, 316249, 632498, 948747, 1264996, 1581245, 1897494, 3162490, 3794988, 4743735, 6324980, 9487470, 18974940]

約数ペア:

[(1, 18974940), (2, 9487470), (3, 6324980), (4, 4743735), (5, 3794988), (6, 3162490), (10, 1897494), (12, 1581245), (15, 1264996), (20, 948747), (30, 632498), (60, 316249), (229, 82860), (458, 41430), (687, 27620), (916, 20715), (1145, 16572), (1374, 13810), (1381, 13740), (2290, 8286), (2748, 6905), (2762, 6870), (3435, 5524), (4143, 4580)]