20121949240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1193}}^1\times {\mathrm{22193}}^1$

素因数の和:23416

約数の個数: 64

約数和(自身を含む): 47699344800

約数和(自身を除く): 27577395560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1193, 2386, 4772, 5965, 9544, 11930, 22193, 22667, 23860, 44386, 45334, 47720, 88772, 90668, 110965, 113335, 177544, 181336, 221930, 226670, 421667, 443860, 453340, 843334, 887720, 906680, 1686668, 2108335, 3373336, 4216670, 8433340, 16866680, 26476249, 52952498, 105904996, 132381245, 211809992, 264762490, 503048731, 529524980, 1006097462, 1059049960, 2012194924, 2515243655, 4024389848, 5030487310, 10060974620, 20121949240]

約数ペア:

[(1, 20121949240), (2, 10060974620), (4, 5030487310), (5, 4024389848), (8, 2515243655), (10, 2012194924), (19, 1059049960), (20, 1006097462), (38, 529524980), (40, 503048731), (76, 264762490), (95, 211809992), (152, 132381245), (190, 105904996), (380, 52952498), (760, 26476249), (1193, 16866680), (2386, 8433340), (4772, 4216670), (5965, 3373336), (9544, 2108335), (11930, 1686668), (22193, 906680), (22667, 887720), (23860, 843334), (44386, 453340), (45334, 443860), (47720, 421667), (88772, 226670), (90668, 221930), (110965, 181336), (113335, 177544)]