84378320

素因数分解:

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

素因数の和:197

約数の個数: 90

約数和(自身を含む): 215154198

約数和(自身を除く): 130775878

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 169, 208, 260, 316, 338, 395, 520, 632, 676, 790, 845, 1027, 1040, 1264, 1352, 1580, 1690, 2054, 2704, 3160, 3380, 4108, 5135, 6241, 6320, 6760, 8216, 10270, 12482, 13351, 13520, 16432, 20540, 24964, 26702, 31205, 41080, 49928, 53404, 62410, 66755, 81133, 82160, 99856, 106808, 124820, 133510, 162266, 213616, 249640, 267020, 324532, 405665, 499280, 534040, 649064, 811330, 1054729, 1068080, 1298128, 1622660, 2109458, 3245320, 4218916, 5273645, 6490640, 8437832, 10547290, 16875664, 21094580, 42189160, 84378320]

約数ペア:

[(1, 84378320), (2, 42189160), (4, 21094580), (5, 16875664), (8, 10547290), (10, 8437832), (13, 6490640), (16, 5273645), (20, 4218916), (26, 3245320), (40, 2109458), (52, 1622660), (65, 1298128), (79, 1068080), (80, 1054729), (104, 811330), (130, 649064), (158, 534040), (169, 499280), (208, 405665), (260, 324532), (316, 267020), (338, 249640), (395, 213616), (520, 162266), (632, 133510), (676, 124820), (790, 106808), (845, 99856), (1027, 82160), (1040, 81133), (1264, 66755), (1352, 62410), (1580, 53404), (1690, 49928), (2054, 41080), (2704, 31205), (3160, 26702), (3380, 24964), (4108, 20540), (5135, 16432), (6241, 13520), (6320, 13351), (6760, 12482), (8216, 10270)]