20320020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16127}}^1$

素因数の和:16149

約数の個数: 72

約数和(自身を含む): 70447104

約数和(自身を除く): 50127084

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 16127, 32254, 48381, 64508, 80635, 96762, 112889, 145143, 161270, 193524, 225778, 241905, 290286, 322540, 338667, 451556, 483810, 564445, 580572, 677334, 725715, 967620, 1016001, 1128890, 1354668, 1451430, 1693335, 2032002, 2257780, 2902860, 3386670, 4064004, 5080005, 6773340, 10160010, 20320020]

約数ペア:

[(1, 20320020), (2, 10160010), (3, 6773340), (4, 5080005), (5, 4064004), (6, 3386670), (7, 2902860), (9, 2257780), (10, 2032002), (12, 1693335), (14, 1451430), (15, 1354668), (18, 1128890), (20, 1016001), (21, 967620), (28, 725715), (30, 677334), (35, 580572), (36, 564445), (42, 483810), (45, 451556), (60, 338667), (63, 322540), (70, 290286), (84, 241905), (90, 225778), (105, 193524), (126, 161270), (140, 145143), (180, 112889), (210, 96762), (252, 80635), (315, 64508), (420, 48381), (630, 32254), (1260, 16127)]