51711280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{809}}^1$

素因数の和:886

約数の個数: 80

約数和(自身を含む): 130170240

約数和(自身を除く): 78458960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 235, 272, 340, 376, 470, 680, 752, 799, 809, 940, 1360, 1598, 1618, 1880, 3196, 3236, 3760, 3995, 4045, 6392, 6472, 7990, 8090, 12784, 12944, 13753, 15980, 16180, 27506, 31960, 32360, 38023, 55012, 63920, 64720, 68765, 76046, 110024, 137530, 152092, 190115, 220048, 275060, 304184, 380230, 550120, 608368, 646391, 760460, 1100240, 1292782, 1520920, 2585564, 3041840, 3231955, 5171128, 6463910, 10342256, 12927820, 25855640, 51711280]

約数ペア:

[(1, 51711280), (2, 25855640), (4, 12927820), (5, 10342256), (8, 6463910), (10, 5171128), (16, 3231955), (17, 3041840), (20, 2585564), (34, 1520920), (40, 1292782), (47, 1100240), (68, 760460), (80, 646391), (85, 608368), (94, 550120), (136, 380230), (170, 304184), (188, 275060), (235, 220048), (272, 190115), (340, 152092), (376, 137530), (470, 110024), (680, 76046), (752, 68765), (799, 64720), (809, 63920), (940, 55012), (1360, 38023), (1598, 32360), (1618, 31960), (1880, 27506), (3196, 16180), (3236, 15980), (3760, 13753), (3995, 12944), (4045, 12784), (6392, 8090), (6472, 7990)]