31876870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 65318400

約数和(自身を除く): 33441530

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 71, 85, 95, 139, 142, 170, 190, 278, 323, 355, 646, 695, 710, 1207, 1349, 1390, 1615, 2363, 2414, 2641, 2698, 3230, 4726, 5282, 6035, 6745, 9869, 11815, 12070, 13205, 13490, 19738, 22933, 23630, 26410, 44897, 45866, 49345, 89794, 98690, 114665, 167773, 187511, 224485, 229330, 335546, 375022, 448970, 838865, 937555, 1677730, 1875110, 3187687, 6375374, 15938435, 31876870]

約数ペア:

[(1, 31876870), (2, 15938435), (5, 6375374), (10, 3187687), (17, 1875110), (19, 1677730), (34, 937555), (38, 838865), (71, 448970), (85, 375022), (95, 335546), (139, 229330), (142, 224485), (170, 187511), (190, 167773), (278, 114665), (323, 98690), (355, 89794), (646, 49345), (695, 45866), (710, 44897), (1207, 26410), (1349, 23630), (1390, 22933), (1615, 19738), (2363, 13490), (2414, 13205), (2641, 12070), (2698, 11815), (3230, 9869), (4726, 6745), (5282, 6035)]