31815108

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1$

素因数の和:613

約数の個数: 72

約数和(自身を含む): 87360728

約数和(自身を除く): 55545620

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 157, 234, 314, 433, 468, 471, 628, 866, 942, 1299, 1413, 1732, 1884, 2041, 2598, 2826, 3897, 4082, 5196, 5629, 5652, 6123, 7794, 8164, 11258, 12246, 15588, 16887, 18369, 22516, 24492, 33774, 36738, 50661, 67548, 67981, 73476, 101322, 135962, 202644, 203943, 271924, 407886, 611829, 815772, 883753, 1223658, 1767506, 2447316, 2651259, 3535012, 5302518, 7953777, 10605036, 15907554, 31815108]

約数ペア:

[(1, 31815108), (2, 15907554), (3, 10605036), (4, 7953777), (6, 5302518), (9, 3535012), (12, 2651259), (13, 2447316), (18, 1767506), (26, 1223658), (36, 883753), (39, 815772), (52, 611829), (78, 407886), (117, 271924), (156, 203943), (157, 202644), (234, 135962), (314, 101322), (433, 73476), (468, 67981), (471, 67548), (628, 50661), (866, 36738), (942, 33774), (1299, 24492), (1413, 22516), (1732, 18369), (1884, 16887), (2041, 15588), (2598, 12246), (2826, 11258), (3897, 8164), (4082, 7794), (5196, 6123), (5629, 5652)]