28029560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2837}}^1$

素因数の和:2880

約数の個数: 64

約数和(自身を含む): 71517600

約数和(自身を除く): 43488040

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 2837, 4940, 5674, 9880, 11348, 14185, 22696, 28370, 36881, 53903, 56740, 73762, 107806, 113480, 147524, 184405, 215612, 269515, 295048, 368810, 431224, 539030, 700739, 737620, 1078060, 1401478, 1475240, 2156120, 2802956, 3503695, 5605912, 7007390, 14014780, 28029560]

約数ペア:

[(1, 28029560), (2, 14014780), (4, 7007390), (5, 5605912), (8, 3503695), (10, 2802956), (13, 2156120), (19, 1475240), (20, 1401478), (26, 1078060), (38, 737620), (40, 700739), (52, 539030), (65, 431224), (76, 368810), (95, 295048), (104, 269515), (130, 215612), (152, 184405), (190, 147524), (247, 113480), (260, 107806), (380, 73762), (494, 56740), (520, 53903), (760, 36881), (988, 28370), (1235, 22696), (1976, 14185), (2470, 11348), (2837, 9880), (4940, 5674)]