72638690

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{647}}^1$

素因数の和:866

約数の個数: 32

約数和(自身を含む): 133436160

約数和(自身を除く): 60797470

約数列:

[1, 2, 5, 10, 103, 109, 206, 218, 515, 545, 647, 1030, 1090, 1294, 3235, 6470, 11227, 22454, 56135, 66641, 70523, 112270, 133282, 141046, 333205, 352615, 666410, 705230, 7263869, 14527738, 36319345, 72638690]

約数ペア:

[(1, 72638690), (2, 36319345), (5, 14527738), (10, 7263869), (103, 705230), (109, 666410), (206, 352615), (218, 333205), (515, 141046), (545, 133282), (647, 112270), (1030, 70523), (1090, 66641), (1294, 56135), (3235, 22454), (6470, 11227)]