30709640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{809}}^1$

素因数の和:906

約数の個数: 64

約数和(自身を含む): 75524400

約数和(自身を除く): 44814760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 520, 584, 730, 809, 949, 1460, 1618, 1898, 2920, 3236, 3796, 4045, 4745, 6472, 7592, 8090, 9490, 10517, 16180, 18980, 21034, 32360, 37960, 42068, 52585, 59057, 84136, 105170, 118114, 210340, 236228, 295285, 420680, 472456, 590570, 767741, 1181140, 1535482, 2362280, 3070964, 3838705, 6141928, 7677410, 15354820, 30709640]

約数ペア:

[(1, 30709640), (2, 15354820), (4, 7677410), (5, 6141928), (8, 3838705), (10, 3070964), (13, 2362280), (20, 1535482), (26, 1181140), (40, 767741), (52, 590570), (65, 472456), (73, 420680), (104, 295285), (130, 236228), (146, 210340), (260, 118114), (292, 105170), (365, 84136), (520, 59057), (584, 52585), (730, 42068), (809, 37960), (949, 32360), (1460, 21034), (1618, 18980), (1898, 16180), (2920, 10517), (3236, 9490), (3796, 8090), (4045, 7592), (4745, 6472)]