20120863720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{148867}}^1$

素因数の和:149018

約数の個数: 64

約数和(自身を含む): 47161382400

約数和(自身を除く): 27040518680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 109, 124, 155, 218, 248, 310, 436, 545, 620, 872, 1090, 1240, 2180, 3379, 4360, 6758, 13516, 16895, 27032, 33790, 67580, 135160, 148867, 297734, 595468, 744335, 1190936, 1488670, 2977340, 4614877, 5954680, 9229754, 16226503, 18459508, 23074385, 32453006, 36919016, 46148770, 64906012, 81132515, 92297540, 129812024, 162265030, 184595080, 324530060, 503021593, 649060120, 1006043186, 2012086372, 2515107965, 4024172744, 5030215930, 10060431860, 20120863720]

約数ペア:

[(1, 20120863720), (2, 10060431860), (4, 5030215930), (5, 4024172744), (8, 2515107965), (10, 2012086372), (20, 1006043186), (31, 649060120), (40, 503021593), (62, 324530060), (109, 184595080), (124, 162265030), (155, 129812024), (218, 92297540), (248, 81132515), (310, 64906012), (436, 46148770), (545, 36919016), (620, 32453006), (872, 23074385), (1090, 18459508), (1240, 16226503), (2180, 9229754), (3379, 5954680), (4360, 4614877), (6758, 2977340), (13516, 1488670), (16895, 1190936), (27032, 744335), (33790, 595468), (67580, 297734), (135160, 148867)]