390342160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4751}}^1$

素因数の和:4856

約数の個数: 80

約数和(自身を含む): 989936640

約数和(自身を除く): 599594480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 260, 316, 395, 520, 632, 790, 1027, 1040, 1264, 1580, 2054, 3160, 4108, 4751, 5135, 6320, 8216, 9502, 10270, 16432, 19004, 20540, 23755, 38008, 41080, 47510, 61763, 76016, 82160, 95020, 123526, 190040, 247052, 308815, 375329, 380080, 494104, 617630, 750658, 988208, 1235260, 1501316, 1876645, 2470520, 3002632, 3753290, 4879277, 4941040, 6005264, 7506580, 9758554, 15013160, 19517108, 24396385, 30026320, 39034216, 48792770, 78068432, 97585540, 195171080, 390342160]

約数ペア:

[(1, 390342160), (2, 195171080), (4, 97585540), (5, 78068432), (8, 48792770), (10, 39034216), (13, 30026320), (16, 24396385), (20, 19517108), (26, 15013160), (40, 9758554), (52, 7506580), (65, 6005264), (79, 4941040), (80, 4879277), (104, 3753290), (130, 3002632), (158, 2470520), (208, 1876645), (260, 1501316), (316, 1235260), (395, 988208), (520, 750658), (632, 617630), (790, 494104), (1027, 380080), (1040, 375329), (1264, 308815), (1580, 247052), (2054, 190040), (3160, 123526), (4108, 95020), (4751, 82160), (5135, 76016), (6320, 61763), (8216, 47510), (9502, 41080), (10270, 38008), (16432, 23755), (19004, 20540)]