12721380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{4327}}^1$

素因数の和:4353

約数の個数: 72

約数和(自身を含む): 41444928

約数和(自身を除く): 28723548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 4327, 8654, 12981, 17308, 21635, 25962, 30289, 43270, 51924, 60578, 64905, 86540, 90867, 121156, 129810, 151445, 181734, 212023, 259620, 302890, 363468, 424046, 454335, 605780, 636069, 848092, 908670, 1060115, 1272138, 1817340, 2120230, 2544276, 3180345, 4240460, 6360690, 12721380]

約数ペア:

[(1, 12721380), (2, 6360690), (3, 4240460), (4, 3180345), (5, 2544276), (6, 2120230), (7, 1817340), (10, 1272138), (12, 1060115), (14, 908670), (15, 848092), (20, 636069), (21, 605780), (28, 454335), (30, 424046), (35, 363468), (42, 302890), (49, 259620), (60, 212023), (70, 181734), (84, 151445), (98, 129810), (105, 121156), (140, 90867), (147, 86540), (196, 64905), (210, 60578), (245, 51924), (294, 43270), (420, 30289), (490, 25962), (588, 21635), (735, 17308), (980, 12981), (1470, 8654), (2940, 4327)]