19710630

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{563}}^1$

素因数の和:965

約数の個数: 48

約数和(自身を含む): 51470640

約数和(自身を除く): 31760010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 389, 563, 778, 1126, 1167, 1689, 1945, 2334, 2815, 3378, 3501, 3890, 5067, 5630, 5835, 7002, 8445, 10134, 11670, 16890, 17505, 25335, 35010, 50670, 219007, 438014, 657021, 1095035, 1314042, 1971063, 2190070, 3285105, 3942126, 6570210, 9855315, 19710630]

約数ペア:

[(1, 19710630), (2, 9855315), (3, 6570210), (5, 3942126), (6, 3285105), (9, 2190070), (10, 1971063), (15, 1314042), (18, 1095035), (30, 657021), (45, 438014), (90, 219007), (389, 50670), (563, 35010), (778, 25335), (1126, 17505), (1167, 16890), (1689, 11670), (1945, 10134), (2334, 8445), (2815, 7002), (3378, 5835), (3501, 5630), (3890, 5067)]