20429220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{383}}^1$

素因数の和:529

約数の個数: 96

約数和(自身を含む): 66060288

約数和(自身を除く): 45631068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 127, 140, 210, 254, 381, 383, 420, 508, 635, 762, 766, 889, 1149, 1270, 1524, 1532, 1778, 1905, 1915, 2298, 2540, 2667, 2681, 3556, 3810, 3830, 4445, 4596, 5334, 5362, 5745, 7620, 7660, 8043, 8890, 10668, 10724, 11490, 13335, 13405, 16086, 17780, 22980, 26670, 26810, 32172, 40215, 48641, 53340, 53620, 80430, 97282, 145923, 160860, 194564, 243205, 291846, 340487, 486410, 583692, 680974, 729615, 972820, 1021461, 1361948, 1459230, 1702435, 2042922, 2918460, 3404870, 4085844, 5107305, 6809740, 10214610, 20429220]

約数ペア:

[(1, 20429220), (2, 10214610), (3, 6809740), (4, 5107305), (5, 4085844), (6, 3404870), (7, 2918460), (10, 2042922), (12, 1702435), (14, 1459230), (15, 1361948), (20, 1021461), (21, 972820), (28, 729615), (30, 680974), (35, 583692), (42, 486410), (60, 340487), (70, 291846), (84, 243205), (105, 194564), (127, 160860), (140, 145923), (210, 97282), (254, 80430), (381, 53620), (383, 53340), (420, 48641), (508, 40215), (635, 32172), (762, 26810), (766, 26670), (889, 22980), (1149, 17780), (1270, 16086), (1524, 13405), (1532, 13335), (1778, 11490), (1905, 10724), (1915, 10668), (2298, 8890), (2540, 8043), (2667, 7660), (2681, 7620), (3556, 5745), (3810, 5362), (3830, 5334), (4445, 4596)]