12661790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{647}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 24261120

約数和(自身を除く): 11599330

約数列:

[1, 2, 5, 10, 19, 38, 95, 103, 190, 206, 515, 647, 1030, 1294, 1957, 3235, 3914, 6470, 9785, 12293, 19570, 24586, 61465, 66641, 122930, 133282, 333205, 666410, 1266179, 2532358, 6330895, 12661790]

約数ペア:

[(1, 12661790), (2, 6330895), (5, 2532358), (10, 1266179), (19, 666410), (38, 333205), (95, 133282), (103, 122930), (190, 66641), (206, 61465), (515, 24586), (647, 19570), (1030, 12293), (1294, 9785), (1957, 6470), (3235, 3914)]