2780822020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{13183}}^1$

素因数の和:13444

約数の個数: 48

約数和(自身を含む): 5980262400

約数和(自身を除く): 3199440380

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 199, 212, 265, 398, 530, 796, 995, 1060, 1990, 3980, 10547, 13183, 21094, 26366, 42188, 52732, 52735, 65915, 105470, 131830, 210940, 263660, 698699, 1397398, 2623417, 2794796, 3493495, 5246834, 6986990, 10493668, 13117085, 13973980, 26234170, 52468340, 139041101, 278082202, 556164404, 695205505, 1390411010, 2780822020]

約数ペア:

[(1, 2780822020), (2, 1390411010), (4, 695205505), (5, 556164404), (10, 278082202), (20, 139041101), (53, 52468340), (106, 26234170), (199, 13973980), (212, 13117085), (265, 10493668), (398, 6986990), (530, 5246834), (796, 3493495), (995, 2794796), (1060, 2623417), (1990, 1397398), (3980, 698699), (10547, 263660), (13183, 210940), (21094, 131830), (26366, 105470), (42188, 65915), (52732, 52735)]