21690253135880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{58831}}^1\times {\mathrm{1316741}}^1$

素因数の和:1375590

約数の個数: 64

約数和(自身を含む): 55775927047680

約数和(自身を除く): 34085673911800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 58831, 117662, 235324, 294155, 411817, 470648, 588310, 823634, 1176620, 1316741, 1647268, 2059085, 2353240, 2633482, 3294536, 4118170, 5266964, 6583705, 8236340, 9217187, 10533928, 13167410, 16472680, 18434374, 26334820, 36868748, 46085935, 52669640, 73737496, 92171870, 184343740, 368687480, 77465189771, 154930379542, 309860759084, 387325948855, 542256328397, 619721518168, 774651897710, 1084512656794, 1549303795420, 2169025313588, 2711281641985, 3098607590840, 4338050627176, 5422563283970, 10845126567940, 21690253135880]

約数ペア:

[(1, 21690253135880), (2, 10845126567940), (4, 5422563283970), (5, 4338050627176), (7, 3098607590840), (8, 2711281641985), (10, 2169025313588), (14, 1549303795420), (20, 1084512656794), (28, 774651897710), (35, 619721518168), (40, 542256328397), (56, 387325948855), (70, 309860759084), (140, 154930379542), (280, 77465189771), (58831, 368687480), (117662, 184343740), (235324, 92171870), (294155, 73737496), (411817, 52669640), (470648, 46085935), (588310, 36868748), (823634, 26334820), (1176620, 18434374), (1316741, 16472680), (1647268, 13167410), (2059085, 10533928), (2353240, 9217187), (2633482, 8236340), (3294536, 6583705), (4118170, 5266964)]