25661740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{431}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 58423680

約数和(自身を除く): 32761940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 229, 260, 431, 458, 862, 916, 1145, 1724, 2155, 2290, 2977, 4310, 4580, 5603, 5954, 8620, 11206, 11908, 14885, 22412, 28015, 29770, 56030, 59540, 98699, 112060, 197398, 394796, 493495, 986990, 1283087, 1973980, 2566174, 5132348, 6415435, 12830870, 25661740]

約数ペア:

[(1, 25661740), (2, 12830870), (4, 6415435), (5, 5132348), (10, 2566174), (13, 1973980), (20, 1283087), (26, 986990), (52, 493495), (65, 394796), (130, 197398), (229, 112060), (260, 98699), (431, 59540), (458, 56030), (862, 29770), (916, 28015), (1145, 22412), (1724, 14885), (2155, 11908), (2290, 11206), (2977, 8620), (4310, 5954), (4580, 5603)]