138847760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55987}}^1$

素因数の和:56031

約数の個数: 40

約数和(自身を含む): 333240576

約数和(自身を除く): 194392816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 55987, 111974, 223948, 279935, 447896, 559870, 895792, 1119740, 1735597, 2239480, 3471194, 4478960, 6942388, 8677985, 13884776, 17355970, 27769552, 34711940, 69423880, 138847760]

約数ペア:

[(1, 138847760), (2, 69423880), (4, 34711940), (5, 27769552), (8, 17355970), (10, 13884776), (16, 8677985), (20, 6942388), (31, 4478960), (40, 3471194), (62, 2239480), (80, 1735597), (124, 1119740), (155, 895792), (248, 559870), (310, 447896), (496, 279935), (620, 223948), (1240, 111974), (2480, 55987)]