66613040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{379}}^1$

素因数の和:431

約数の個数: 80

約数和(自身を含む): 168218400

約数和(自身を除く): 101605360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 379, 520, 676, 758, 845, 1040, 1352, 1516, 1690, 1895, 2197, 2704, 3032, 3380, 3790, 4394, 4927, 6064, 6760, 7580, 8788, 9854, 10985, 13520, 15160, 17576, 19708, 21970, 24635, 30320, 35152, 39416, 43940, 49270, 64051, 78832, 87880, 98540, 128102, 175760, 197080, 256204, 320255, 394160, 512408, 640510, 832663, 1024816, 1281020, 1665326, 2562040, 3330652, 4163315, 5124080, 6661304, 8326630, 13322608, 16653260, 33306520, 66613040]

約数ペア:

[(1, 66613040), (2, 33306520), (4, 16653260), (5, 13322608), (8, 8326630), (10, 6661304), (13, 5124080), (16, 4163315), (20, 3330652), (26, 2562040), (40, 1665326), (52, 1281020), (65, 1024816), (80, 832663), (104, 640510), (130, 512408), (169, 394160), (208, 320255), (260, 256204), (338, 197080), (379, 175760), (520, 128102), (676, 98540), (758, 87880), (845, 78832), (1040, 64051), (1352, 49270), (1516, 43940), (1690, 39416), (1895, 35152), (2197, 30320), (2704, 24635), (3032, 21970), (3380, 19708), (3790, 17576), (4394, 15160), (4927, 13520), (6064, 10985), (6760, 9854), (7580, 8788)]