161853880

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:500

約数の個数: 64

約数和(自身を含む): 371220480

約数和(自身を除く): 209366600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 151, 211, 254, 302, 422, 508, 604, 635, 755, 844, 1016, 1055, 1208, 1270, 1510, 1688, 2110, 2540, 3020, 4220, 5080, 6040, 8440, 19177, 26797, 31861, 38354, 53594, 63722, 76708, 95885, 107188, 127444, 133985, 153416, 159305, 191770, 214376, 254888, 267970, 318610, 383540, 535940, 637220, 767080, 1071880, 1274440, 4046347, 8092694, 16185388, 20231735, 32370776, 40463470, 80926940, 161853880]

約数ペア:

[(1, 161853880), (2, 80926940), (4, 40463470), (5, 32370776), (8, 20231735), (10, 16185388), (20, 8092694), (40, 4046347), (127, 1274440), (151, 1071880), (211, 767080), (254, 637220), (302, 535940), (422, 383540), (508, 318610), (604, 267970), (635, 254888), (755, 214376), (844, 191770), (1016, 159305), (1055, 153416), (1208, 133985), (1270, 127444), (1510, 107188), (1688, 95885), (2110, 76708), (2540, 63722), (3020, 53594), (4220, 38354), (5080, 31861), (6040, 26797), (8440, 19177)]