71979615

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2543}}^1$

素因数の和:2608

約数の個数: 48

約数和(自身を含む): 135727488

約数和(自身を除く): 63747873

約数列:

[1, 3, 5, 9, 15, 17, 37, 45, 51, 85, 111, 153, 185, 255, 333, 555, 629, 765, 1665, 1887, 2543, 3145, 5661, 7629, 9435, 12715, 22887, 28305, 38145, 43231, 94091, 114435, 129693, 216155, 282273, 389079, 470455, 648465, 846819, 1411365, 1599547, 1945395, 4234095, 4798641, 7997735, 14395923, 23993205, 71979615]

約数ペア:

[(1, 71979615), (3, 23993205), (5, 14395923), (9, 7997735), (15, 4798641), (17, 4234095), (37, 1945395), (45, 1599547), (51, 1411365), (85, 846819), (111, 648465), (153, 470455), (185, 389079), (255, 282273), (333, 216155), (555, 129693), (629, 114435), (765, 94091), (1665, 43231), (1887, 38145), (2543, 28305), (3145, 22887), (5661, 12715), (7629, 9435)]