19217940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{45757}}^1$

素因数の和:45776

約数の個数: 48

約数和(自身を含む): 61498752

約数和(自身を除く): 42280812

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 45757, 91514, 137271, 183028, 228785, 274542, 320299, 457570, 549084, 640598, 686355, 915140, 960897, 1281196, 1372710, 1601495, 1921794, 2745420, 3202990, 3843588, 4804485, 6405980, 9608970, 19217940]

約数ペア:

[(1, 19217940), (2, 9608970), (3, 6405980), (4, 4804485), (5, 3843588), (6, 3202990), (7, 2745420), (10, 1921794), (12, 1601495), (14, 1372710), (15, 1281196), (20, 960897), (21, 915140), (28, 686355), (30, 640598), (35, 549084), (42, 457570), (60, 320299), (70, 274542), (84, 228785), (105, 183028), (140, 137271), (210, 91514), (420, 45757)]