20653360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2837}}^1$

素因数の和:2870

約数の個数: 80

約数和(自身を含む): 59121216

約数和(自身を除く): 38467856

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 2837, 3640, 5674, 7280, 11348, 14185, 19859, 22696, 28370, 36881, 39718, 45392, 56740, 73762, 79436, 99295, 113480, 147524, 158872, 184405, 198590, 226960, 258167, 295048, 317744, 368810, 397180, 516334, 590096, 737620, 794360, 1032668, 1290835, 1475240, 1588720, 2065336, 2581670, 2950480, 4130672, 5163340, 10326680, 20653360]

約数ペア:

[(1, 20653360), (2, 10326680), (4, 5163340), (5, 4130672), (7, 2950480), (8, 2581670), (10, 2065336), (13, 1588720), (14, 1475240), (16, 1290835), (20, 1032668), (26, 794360), (28, 737620), (35, 590096), (40, 516334), (52, 397180), (56, 368810), (65, 317744), (70, 295048), (80, 258167), (91, 226960), (104, 198590), (112, 184405), (130, 158872), (140, 147524), (182, 113480), (208, 99295), (260, 79436), (280, 73762), (364, 56740), (455, 45392), (520, 39718), (560, 36881), (728, 28370), (910, 22696), (1040, 19859), (1456, 14185), (1820, 11348), (2837, 7280), (3640, 5674)]