61438040

素因数分解:

$2^3\times 5^1\times {\mathrm{773}}^1\times {\mathrm{1987}}^1$

素因数の和:2771

約数の個数: 32

約数和(自身を含む): 138484080

約数和(自身を除く): 77046040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 773, 1546, 1987, 3092, 3865, 3974, 6184, 7730, 7948, 9935, 15460, 15896, 19870, 30920, 39740, 79480, 1535951, 3071902, 6143804, 7679755, 12287608, 15359510, 30719020, 61438040]

約数ペア:

[(1, 61438040), (2, 30719020), (4, 15359510), (5, 12287608), (8, 7679755), (10, 6143804), (20, 3071902), (40, 1535951), (773, 79480), (1546, 39740), (1987, 30920), (3092, 19870), (3865, 15896), (3974, 15460), (6184, 9935), (7730, 7948)]