20888973020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{859}}^1\times {\mathrm{15391}}^1$

素因数の和:16338

約数の個数: 48

約数和(自身を含む): 44476723200

約数和(自身を除く): 23587750180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 859, 1580, 1718, 3436, 4295, 8590, 15391, 17180, 30782, 61564, 67861, 76955, 135722, 153910, 271444, 307820, 339305, 678610, 1215889, 1357220, 2431778, 4863556, 6079445, 12158890, 13220869, 24317780, 26441738, 52883476, 66104345, 132208690, 264417380, 1044448651, 2088897302, 4177794604, 5222243255, 10444486510, 20888973020]

約数ペア:

[(1, 20888973020), (2, 10444486510), (4, 5222243255), (5, 4177794604), (10, 2088897302), (20, 1044448651), (79, 264417380), (158, 132208690), (316, 66104345), (395, 52883476), (790, 26441738), (859, 24317780), (1580, 13220869), (1718, 12158890), (3436, 6079445), (4295, 4863556), (8590, 2431778), (15391, 1357220), (17180, 1215889), (30782, 678610), (61564, 339305), (67861, 307820), (76955, 271444), (135722, 153910)]