1405620560

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{2549}}^1$

素因数の和:2736

約数の個数: 80

約数和(自身を含む): 3352352400

約数和(自身を除く): 1946731840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 113, 122, 226, 244, 305, 452, 488, 565, 610, 904, 976, 1130, 1220, 1808, 2260, 2440, 2549, 4520, 4880, 5098, 6893, 9040, 10196, 12745, 13786, 20392, 25490, 27572, 34465, 40784, 50980, 55144, 68930, 101960, 110288, 137860, 155489, 203920, 275720, 288037, 310978, 551440, 576074, 621956, 777445, 1152148, 1243912, 1440185, 1554890, 2304296, 2487824, 2880370, 3109780, 4608592, 5760740, 6219560, 11521480, 12439120, 17570257, 23042960, 35140514, 70281028, 87851285, 140562056, 175702570, 281124112, 351405140, 702810280, 1405620560]

約数ペア:

[(1, 1405620560), (2, 702810280), (4, 351405140), (5, 281124112), (8, 175702570), (10, 140562056), (16, 87851285), (20, 70281028), (40, 35140514), (61, 23042960), (80, 17570257), (113, 12439120), (122, 11521480), (226, 6219560), (244, 5760740), (305, 4608592), (452, 3109780), (488, 2880370), (565, 2487824), (610, 2304296), (904, 1554890), (976, 1440185), (1130, 1243912), (1220, 1152148), (1808, 777445), (2260, 621956), (2440, 576074), (2549, 551440), (4520, 310978), (4880, 288037), (5098, 275720), (6893, 203920), (9040, 155489), (10196, 137860), (12745, 110288), (13786, 101960), (20392, 68930), (25490, 55144), (27572, 50980), (34465, 40784)]