311907484

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^2\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 655549440

約数和(自身を除く): 343641956

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 79, 103, 148, 158, 206, 259, 316, 412, 518, 553, 721, 1036, 1106, 1369, 1442, 2212, 2738, 2884, 2923, 3811, 5476, 5846, 7622, 8137, 9583, 11692, 15244, 16274, 19166, 20461, 26677, 32548, 38332, 40922, 53354, 56959, 81844, 106708, 108151, 113918, 141007, 216302, 227836, 282014, 301069, 432604, 564028, 602138, 757057, 987049, 1204276, 1514114, 1974098, 2107483, 3028228, 3948196, 4214966, 8429932, 11139553, 22279106, 44558212, 77976871, 155953742, 311907484]

約数ペア:

[(1, 311907484), (2, 155953742), (4, 77976871), (7, 44558212), (14, 22279106), (28, 11139553), (37, 8429932), (74, 4214966), (79, 3948196), (103, 3028228), (148, 2107483), (158, 1974098), (206, 1514114), (259, 1204276), (316, 987049), (412, 757057), (518, 602138), (553, 564028), (721, 432604), (1036, 301069), (1106, 282014), (1369, 227836), (1442, 216302), (2212, 141007), (2738, 113918), (2884, 108151), (2923, 106708), (3811, 81844), (5476, 56959), (5846, 53354), (7622, 40922), (8137, 38332), (9583, 32548), (11692, 26677), (15244, 20461), (16274, 19166)]