25855640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{809}}^1$

素因数の和:884

約数の個数: 64

約数和(自身を含む): 62985600

約数和(自身を除く): 37129960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 680, 799, 809, 940, 1598, 1618, 1880, 3196, 3236, 3995, 4045, 6392, 6472, 7990, 8090, 13753, 15980, 16180, 27506, 31960, 32360, 38023, 55012, 68765, 76046, 110024, 137530, 152092, 190115, 275060, 304184, 380230, 550120, 646391, 760460, 1292782, 1520920, 2585564, 3231955, 5171128, 6463910, 12927820, 25855640]

約数ペア:

[(1, 25855640), (2, 12927820), (4, 6463910), (5, 5171128), (8, 3231955), (10, 2585564), (17, 1520920), (20, 1292782), (34, 760460), (40, 646391), (47, 550120), (68, 380230), (85, 304184), (94, 275060), (136, 190115), (170, 152092), (188, 137530), (235, 110024), (340, 76046), (376, 68765), (470, 55012), (680, 38023), (799, 32360), (809, 31960), (940, 27506), (1598, 16180), (1618, 15980), (1880, 13753), (3196, 8090), (3236, 7990), (3995, 6472), (4045, 6392)]