20109222018

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1\times {\mathrm{457}}^1$

素因数の和:1056

約数の個数: 96

約数和(自身を含む): 45112267200

約数和(自身を除く): 25003045182

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 139, 258, 278, 387, 409, 417, 457, 774, 818, 834, 914, 1227, 1251, 1371, 2454, 2502, 2742, 3681, 4113, 5977, 7362, 8226, 11954, 17587, 17931, 19651, 35174, 35862, 39302, 52761, 53793, 56851, 58953, 63523, 105522, 107586, 113702, 117906, 127046, 158283, 170553, 176859, 186913, 190569, 316566, 341106, 353718, 373826, 381138, 511659, 560739, 571707, 1023318, 1121478, 1143414, 1682217, 2444593, 2731489, 3364434, 4889186, 5462978, 7333779, 8037259, 8194467, 14667558, 16074518, 16388934, 22001337, 24111777, 24583401, 25980907, 44002674, 48223554, 49166802, 51961814, 72335331, 77942721, 144670662, 155885442, 233828163, 467656326, 1117179001, 2234358002, 3351537003, 6703074006, 10054611009, 20109222018]

約数ペア:

[(1, 20109222018), (2, 10054611009), (3, 6703074006), (6, 3351537003), (9, 2234358002), (18, 1117179001), (43, 467656326), (86, 233828163), (129, 155885442), (139, 144670662), (258, 77942721), (278, 72335331), (387, 51961814), (409, 49166802), (417, 48223554), (457, 44002674), (774, 25980907), (818, 24583401), (834, 24111777), (914, 22001337), (1227, 16388934), (1251, 16074518), (1371, 14667558), (2454, 8194467), (2502, 8037259), (2742, 7333779), (3681, 5462978), (4113, 4889186), (5977, 3364434), (7362, 2731489), (8226, 2444593), (11954, 1682217), (17587, 1143414), (17931, 1121478), (19651, 1023318), (35174, 571707), (35862, 560739), (39302, 511659), (52761, 381138), (53793, 373826), (56851, 353718), (58953, 341106), (63523, 316566), (105522, 190569), (107586, 186913), (113702, 176859), (117906, 170553), (127046, 158283)]