204967240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1\times {\mathrm{443}}^1$

素因数の和:766

約数の個数: 64

約数和(自身を含む): 474724800

約数和(自身を除く): 269757560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 269, 344, 430, 443, 538, 860, 886, 1076, 1345, 1720, 1772, 2152, 2215, 2690, 3544, 4430, 5380, 8860, 10760, 11567, 17720, 19049, 23134, 38098, 46268, 57835, 76196, 92536, 95245, 115670, 119167, 152392, 190490, 231340, 238334, 380980, 462680, 476668, 595835, 761960, 953336, 1191670, 2383340, 4766680, 5124181, 10248362, 20496724, 25620905, 40993448, 51241810, 102483620, 204967240]

約数ペア:

[(1, 204967240), (2, 102483620), (4, 51241810), (5, 40993448), (8, 25620905), (10, 20496724), (20, 10248362), (40, 5124181), (43, 4766680), (86, 2383340), (172, 1191670), (215, 953336), (269, 761960), (344, 595835), (430, 476668), (443, 462680), (538, 380980), (860, 238334), (886, 231340), (1076, 190490), (1345, 152392), (1720, 119167), (1772, 115670), (2152, 95245), (2215, 92536), (2690, 76196), (3544, 57835), (4430, 46268), (5380, 38098), (8860, 23134), (10760, 19049), (11567, 17720)]