72794120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{521}}^1$

素因数の和:1038

約数の個数: 64

約数和(自身を含む): 187920000

約数和(自身を除く): 115125880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 499, 521, 998, 1042, 1996, 2084, 2495, 2605, 3493, 3647, 3992, 4168, 4990, 5210, 6986, 7294, 9980, 10420, 13972, 14588, 17465, 18235, 19960, 20840, 27944, 29176, 34930, 36470, 69860, 72940, 139720, 145880, 259979, 519958, 1039916, 1299895, 1819853, 2079832, 2599790, 3639706, 5199580, 7279412, 9099265, 10399160, 14558824, 18198530, 36397060, 72794120]

約数ペア:

[(1, 72794120), (2, 36397060), (4, 18198530), (5, 14558824), (7, 10399160), (8, 9099265), (10, 7279412), (14, 5199580), (20, 3639706), (28, 2599790), (35, 2079832), (40, 1819853), (56, 1299895), (70, 1039916), (140, 519958), (280, 259979), (499, 145880), (521, 139720), (998, 72940), (1042, 69860), (1996, 36470), (2084, 34930), (2495, 29176), (2605, 27944), (3493, 20840), (3647, 19960), (3992, 18235), (4168, 17465), (4990, 14588), (5210, 13972), (6986, 10420), (7294, 9980)]