19401390

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:594

約数の個数: 64

約数和(自身を含む): 52153920

約数和(自身を除く): 32752530

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 181, 270, 362, 397, 543, 794, 905, 1086, 1191, 1629, 1810, 1985, 2382, 2715, 3258, 3573, 3970, 4887, 5430, 5955, 7146, 8145, 9774, 10719, 11910, 16290, 17865, 21438, 24435, 35730, 48870, 53595, 71857, 107190, 143714, 215571, 359285, 431142, 646713, 718570, 1077855, 1293426, 1940139, 2155710, 3233565, 3880278, 6467130, 9700695, 19401390]

約数ペア:

[(1, 19401390), (2, 9700695), (3, 6467130), (5, 3880278), (6, 3233565), (9, 2155710), (10, 1940139), (15, 1293426), (18, 1077855), (27, 718570), (30, 646713), (45, 431142), (54, 359285), (90, 215571), (135, 143714), (181, 107190), (270, 71857), (362, 53595), (397, 48870), (543, 35730), (794, 24435), (905, 21438), (1086, 17865), (1191, 16290), (1629, 11910), (1810, 10719), (1985, 9774), (2382, 8145), (2715, 7146), (3258, 5955), (3573, 5430), (3970, 4887)]