20161255880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{751}}^1\times {\mathrm{23143}}^1$

素因数の和:23934

約数の個数: 64

約数和(自身を含む): 46991577600

約数和(自身を除く): 26830321720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 751, 1160, 1502, 3004, 3755, 6008, 7510, 15020, 21779, 23143, 30040, 43558, 46286, 87116, 92572, 108895, 115715, 174232, 185144, 217790, 231430, 435580, 462860, 671147, 871160, 925720, 1342294, 2684588, 3355735, 5369176, 6711470, 13422940, 17380393, 26845880, 34760786, 69521572, 86901965, 139043144, 173803930, 347607860, 504031397, 695215720, 1008062794, 2016125588, 2520156985, 4032251176, 5040313970, 10080627940, 20161255880]

約数ペア:

[(1, 20161255880), (2, 10080627940), (4, 5040313970), (5, 4032251176), (8, 2520156985), (10, 2016125588), (20, 1008062794), (29, 695215720), (40, 504031397), (58, 347607860), (116, 173803930), (145, 139043144), (232, 86901965), (290, 69521572), (580, 34760786), (751, 26845880), (1160, 17380393), (1502, 13422940), (3004, 6711470), (3755, 5369176), (6008, 3355735), (7510, 2684588), (15020, 1342294), (21779, 925720), (23143, 871160), (30040, 671147), (43558, 462860), (46286, 435580), (87116, 231430), (92572, 217790), (108895, 185144), (115715, 174232)]