138973820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{761}}^1$

素因数の和:1190

約数の個数: 48

約数和(自身を含む): 305702208

約数和(自身を除く): 166728388

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 397, 460, 761, 794, 1522, 1588, 1985, 3044, 3805, 3970, 7610, 7940, 9131, 15220, 17503, 18262, 35006, 36524, 45655, 70012, 87515, 91310, 175030, 182620, 302117, 350060, 604234, 1208468, 1510585, 3021170, 6042340, 6948691, 13897382, 27794764, 34743455, 69486910, 138973820]

約数ペア:

[(1, 138973820), (2, 69486910), (4, 34743455), (5, 27794764), (10, 13897382), (20, 6948691), (23, 6042340), (46, 3021170), (92, 1510585), (115, 1208468), (230, 604234), (397, 350060), (460, 302117), (761, 182620), (794, 175030), (1522, 91310), (1588, 87515), (1985, 70012), (3044, 45655), (3805, 36524), (3970, 35006), (7610, 18262), (7940, 17503), (9131, 15220)]