128620842

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1811}}^1$

素因数の和:1931

約数の個数: 64

約数和(自身を含む): 313113600

約数和(自身を除く): 184492758

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 89, 114, 133, 178, 266, 267, 399, 534, 623, 798, 1246, 1691, 1811, 1869, 3382, 3622, 3738, 5073, 5433, 10146, 10866, 11837, 12677, 23674, 25354, 34409, 35511, 38031, 68818, 71022, 76062, 103227, 161179, 206454, 240863, 322358, 481726, 483537, 722589, 967074, 1128253, 1445178, 2256506, 3062401, 3384759, 6124802, 6769518, 9187203, 18374406, 21436807, 42873614, 64310421, 128620842]

約数ペア:

[(1, 128620842), (2, 64310421), (3, 42873614), (6, 21436807), (7, 18374406), (14, 9187203), (19, 6769518), (21, 6124802), (38, 3384759), (42, 3062401), (57, 2256506), (89, 1445178), (114, 1128253), (133, 967074), (178, 722589), (266, 483537), (267, 481726), (399, 322358), (534, 240863), (623, 206454), (798, 161179), (1246, 103227), (1691, 76062), (1811, 71022), (1869, 68818), (3382, 38031), (3622, 35511), (3738, 34409), (5073, 25354), (5433, 23674), (10146, 12677), (10866, 11837)]