841360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1$

素因数の和:835

約数の個数: 40

約数和(自身を含む): 2109240

約数和(自身を除く): 1267880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 809, 1040, 1618, 3236, 4045, 6472, 8090, 10517, 12944, 16180, 21034, 32360, 42068, 52585, 64720, 84136, 105170, 168272, 210340, 420680, 841360]

約数ペア:

[(1, 841360), (2, 420680), (4, 210340), (5, 168272), (8, 105170), (10, 84136), (13, 64720), (16, 52585), (20, 42068), (26, 32360), (40, 21034), (52, 16180), (65, 12944), (80, 10517), (104, 8090), (130, 6472), (208, 4045), (260, 3236), (520, 1618), (809, 1040)]