209701380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71327}}^1$

素因数の和:71353

約数の個数: 72

約数和(自身を含む): 683036928

約数和(自身を除く): 473335548

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, 71327, 142654, 213981, 285308, 356635, 427962, 499289, 713270, 855924, 998578, 1069905, 1426540, 1497867, 1997156, 2139810, 2496445, 2995734, 3495023, 4279620, 4992890, 5991468, 6990046, 7489335, 9985780, 10485069, 13980092, 14978670, 17475115, 20970138, 29957340, 34950230, 41940276, 52425345, 69900460, 104850690, 209701380]

約数ペア:

[(1, 209701380), (2, 104850690), (3, 69900460), (4, 52425345), (5, 41940276), (6, 34950230), (7, 29957340), (10, 20970138), (12, 17475115), (14, 14978670), (15, 13980092), (20, 10485069), (21, 9985780), (28, 7489335), (30, 6990046), (35, 5991468), (42, 4992890), (49, 4279620), (60, 3495023), (70, 2995734), (84, 2496445), (98, 2139810), (105, 1997156), (140, 1497867), (147, 1426540), (196, 1069905), (210, 998578), (245, 855924), (294, 713270), (420, 499289), (490, 427962), (588, 356635), (735, 285308), (980, 213981), (1470, 142654), (2940, 71327)]