20604708

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:577

約数の個数: 72

約数和(自身を含む): 55328000

約数和(自身を除く): 34723292

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 37, 62, 74, 93, 111, 124, 148, 186, 222, 279, 333, 372, 444, 499, 558, 666, 998, 1116, 1147, 1332, 1497, 1996, 2294, 2994, 3441, 4491, 4588, 5988, 6882, 8982, 10323, 13764, 15469, 17964, 18463, 20646, 30938, 36926, 41292, 46407, 55389, 61876, 73852, 92814, 110778, 139221, 166167, 185628, 221556, 278442, 332334, 556884, 572353, 664668, 1144706, 1717059, 2289412, 3434118, 5151177, 6868236, 10302354, 20604708]

約数ペア:

[(1, 20604708), (2, 10302354), (3, 6868236), (4, 5151177), (6, 3434118), (9, 2289412), (12, 1717059), (18, 1144706), (31, 664668), (36, 572353), (37, 556884), (62, 332334), (74, 278442), (93, 221556), (111, 185628), (124, 166167), (148, 139221), (186, 110778), (222, 92814), (279, 73852), (333, 61876), (372, 55389), (444, 46407), (499, 41292), (558, 36926), (666, 30938), (998, 20646), (1116, 18463), (1147, 17964), (1332, 15469), (1497, 13764), (1996, 10323), (2294, 8982), (2994, 6882), (3441, 5988), (4491, 4588)]