20785916304

素因数分解:

$2^4\times 3^3\times {\mathrm{431}}^1\times {\mathrm{111637}}^1$

素因数の和:112085

約数の個数: 80

約数和(自身を含む): 59802243840

約数和(自身を除く): 39016327536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 431, 432, 862, 1293, 1724, 2586, 3448, 3879, 5172, 6896, 7758, 10344, 11637, 15516, 20688, 23274, 31032, 46548, 62064, 93096, 111637, 186192, 223274, 334911, 446548, 669822, 893096, 1004733, 1339644, 1786192, 2009466, 2679288, 3014199, 4018932, 5358576, 6028398, 8037864, 12056796, 16075728, 24113592, 48115547, 48227184, 96231094, 144346641, 192462188, 288693282, 384924376, 433039923, 577386564, 769848752, 866079846, 1154773128, 1299119769, 1732159692, 2309546256, 2598239538, 3464319384, 5196479076, 6928638768, 10392958152, 20785916304]

約数ペア:

[(1, 20785916304), (2, 10392958152), (3, 6928638768), (4, 5196479076), (6, 3464319384), (8, 2598239538), (9, 2309546256), (12, 1732159692), (16, 1299119769), (18, 1154773128), (24, 866079846), (27, 769848752), (36, 577386564), (48, 433039923), (54, 384924376), (72, 288693282), (108, 192462188), (144, 144346641), (216, 96231094), (431, 48227184), (432, 48115547), (862, 24113592), (1293, 16075728), (1724, 12056796), (2586, 8037864), (3448, 6028398), (3879, 5358576), (5172, 4018932), (6896, 3014199), (7758, 2679288), (10344, 2009466), (11637, 1786192), (15516, 1339644), (20688, 1004733), (23274, 893096), (31032, 669822), (46548, 446548), (62064, 334911), (93096, 223274), (111637, 186192)]