81164268

素因数分解:

$2^2\times 3^4\times {\mathrm{397}}^1\times {\mathrm{631}}^1$

素因数の和:1044

約数の個数: 60

約数和(自身を含む): 213050992

約数和(自身を除く): 131886724

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 397, 631, 794, 1191, 1262, 1588, 1893, 2382, 2524, 3573, 3786, 4764, 5679, 7146, 7572, 10719, 11358, 14292, 17037, 21438, 22716, 32157, 34074, 42876, 51111, 64314, 68148, 102222, 128628, 204444, 250507, 501014, 751521, 1002028, 1503042, 2254563, 3006084, 4509126, 6763689, 9018252, 13527378, 20291067, 27054756, 40582134, 81164268]

約数ペア:

[(1, 81164268), (2, 40582134), (3, 27054756), (4, 20291067), (6, 13527378), (9, 9018252), (12, 6763689), (18, 4509126), (27, 3006084), (36, 2254563), (54, 1503042), (81, 1002028), (108, 751521), (162, 501014), (324, 250507), (397, 204444), (631, 128628), (794, 102222), (1191, 68148), (1262, 64314), (1588, 51111), (1893, 42876), (2382, 34074), (2524, 32157), (3573, 22716), (3786, 21438), (4764, 17037), (5679, 14292), (7146, 11358), (7572, 10719)]