67438240

素因数分解:

$2^5\times 5^1\times {\mathrm{521}}^1\times {\mathrm{809}}^1$

素因数の和:1345

約数の個数: 48

約数和(自身を含む): 159825960

約数和(自身を除く): 92387720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 521, 809, 1042, 1618, 2084, 2605, 3236, 4045, 4168, 5210, 6472, 8090, 8336, 10420, 12944, 16180, 16672, 20840, 25888, 32360, 41680, 64720, 83360, 129440, 421489, 842978, 1685956, 2107445, 3371912, 4214890, 6743824, 8429780, 13487648, 16859560, 33719120, 67438240]

約数ペア:

[(1, 67438240), (2, 33719120), (4, 16859560), (5, 13487648), (8, 8429780), (10, 6743824), (16, 4214890), (20, 3371912), (32, 2107445), (40, 1685956), (80, 842978), (160, 421489), (521, 129440), (809, 83360), (1042, 64720), (1618, 41680), (2084, 32360), (2605, 25888), (3236, 20840), (4045, 16672), (4168, 16180), (5210, 12944), (6472, 10420), (8090, 8336)]