687830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1$

素因数の和:81

約数の個数: 48

約数和(自身を含む): 1502064

約数和(自身を除く): 814234

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 37, 55, 65, 74, 110, 130, 143, 169, 185, 286, 338, 370, 407, 481, 715, 814, 845, 962, 1430, 1690, 1859, 2035, 2405, 3718, 4070, 4810, 5291, 6253, 9295, 10582, 12506, 18590, 26455, 31265, 52910, 62530, 68783, 137566, 343915, 687830]

約数ペア:

[(1, 687830), (2, 343915), (5, 137566), (10, 68783), (11, 62530), (13, 52910), (22, 31265), (26, 26455), (37, 18590), (55, 12506), (65, 10582), (74, 9295), (110, 6253), (130, 5291), (143, 4810), (169, 4070), (185, 3718), (286, 2405), (338, 2035), (370, 1859), (407, 1690), (481, 1430), (715, 962), (814, 845)]