20582460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3943}}^1$

素因数の和:3987

約数の個数: 72

約数和(自身を含む): 64602720

約数和(自身を除く): 44020260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 3943, 5220, 7886, 11829, 15772, 19715, 23658, 35487, 39430, 47316, 59145, 70974, 78860, 114347, 118290, 141948, 177435, 228694, 236580, 343041, 354870, 457388, 571735, 686082, 709740, 1029123, 1143470, 1372164, 1715205, 2058246, 2286940, 3430410, 4116492, 5145615, 6860820, 10291230, 20582460]

約数ペア:

[(1, 20582460), (2, 10291230), (3, 6860820), (4, 5145615), (5, 4116492), (6, 3430410), (9, 2286940), (10, 2058246), (12, 1715205), (15, 1372164), (18, 1143470), (20, 1029123), (29, 709740), (30, 686082), (36, 571735), (45, 457388), (58, 354870), (60, 343041), (87, 236580), (90, 228694), (116, 177435), (145, 141948), (174, 118290), (180, 114347), (261, 78860), (290, 70974), (348, 59145), (435, 47316), (522, 39430), (580, 35487), (870, 23658), (1044, 19715), (1305, 15772), (1740, 11829), (2610, 7886), (3943, 5220)]