20190109828

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1039}}^1\times {\mathrm{18757}}^1$

素因数の和:19844

約数の個数: 48

約数和(自身を含む): 41513704960

約数和(自身を除く): 21323595132

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 1039, 2078, 4156, 7273, 14546, 18757, 29092, 37514, 38443, 75028, 76886, 131299, 153772, 262598, 269101, 525196, 538202, 694009, 1076404, 1388018, 2776036, 4858063, 9716126, 19432252, 19488523, 38977046, 77954092, 136419661, 272839322, 545678644, 721075351, 1442150702, 2884301404, 5047527457, 10095054914, 20190109828]

約数ペア:

[(1, 20190109828), (2, 10095054914), (4, 5047527457), (7, 2884301404), (14, 1442150702), (28, 721075351), (37, 545678644), (74, 272839322), (148, 136419661), (259, 77954092), (518, 38977046), (1036, 19488523), (1039, 19432252), (2078, 9716126), (4156, 4858063), (7273, 2776036), (14546, 1388018), (18757, 1076404), (29092, 694009), (37514, 538202), (38443, 525196), (75028, 269101), (76886, 262598), (131299, 153772)]