28218680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3251}}^1$

素因数の和:3300

約数の個数: 64

約数和(自身を含む): 74926080

約数和(自身を除く): 46707400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 3251, 4340, 6502, 8680, 13004, 16255, 22757, 26008, 32510, 45514, 65020, 91028, 100781, 113785, 130040, 182056, 201562, 227570, 403124, 455140, 503905, 705467, 806248, 910280, 1007810, 1410934, 2015620, 2821868, 3527335, 4031240, 5643736, 7054670, 14109340, 28218680]

約数ペア:

[(1, 28218680), (2, 14109340), (4, 7054670), (5, 5643736), (7, 4031240), (8, 3527335), (10, 2821868), (14, 2015620), (20, 1410934), (28, 1007810), (31, 910280), (35, 806248), (40, 705467), (56, 503905), (62, 455140), (70, 403124), (124, 227570), (140, 201562), (155, 182056), (217, 130040), (248, 113785), (280, 100781), (310, 91028), (434, 65020), (620, 45514), (868, 32510), (1085, 26008), (1240, 22757), (1736, 16255), (2170, 13004), (3251, 8680), (4340, 6502)]