20710728

素因数分解:

$2^3\times 3^4\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1080

約数の個数: 80

約数和(自身を含む): 59938560

約数和(自身を除く): 39227832

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 31, 36, 54, 62, 72, 81, 93, 108, 124, 162, 186, 216, 248, 279, 324, 372, 558, 648, 744, 837, 1031, 1116, 1674, 2062, 2232, 2511, 3093, 3348, 4124, 5022, 6186, 6696, 8248, 9279, 10044, 12372, 18558, 20088, 24744, 27837, 31961, 37116, 55674, 63922, 74232, 83511, 95883, 111348, 127844, 167022, 191766, 222696, 255688, 287649, 334044, 383532, 575298, 668088, 767064, 862947, 1150596, 1725894, 2301192, 2588841, 3451788, 5177682, 6903576, 10355364, 20710728]

約数ペア:

[(1, 20710728), (2, 10355364), (3, 6903576), (4, 5177682), (6, 3451788), (8, 2588841), (9, 2301192), (12, 1725894), (18, 1150596), (24, 862947), (27, 767064), (31, 668088), (36, 575298), (54, 383532), (62, 334044), (72, 287649), (81, 255688), (93, 222696), (108, 191766), (124, 167022), (162, 127844), (186, 111348), (216, 95883), (248, 83511), (279, 74232), (324, 63922), (372, 55674), (558, 37116), (648, 31961), (744, 27837), (837, 24744), (1031, 20088), (1116, 18558), (1674, 12372), (2062, 10044), (2232, 9279), (2511, 8248), (3093, 6696), (3348, 6186), (4124, 5022)]