15971960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9739}}^1$

素因数の和:9791

約数の個数: 32

約数和(自身を含む): 36817200

約数和(自身を除く): 20845240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 9739, 19478, 38956, 48695, 77912, 97390, 194780, 389560, 399299, 798598, 1597196, 1996495, 3194392, 3992990, 7985980, 15971960]

約数ペア:

[(1, 15971960), (2, 7985980), (4, 3992990), (5, 3194392), (8, 1996495), (10, 1597196), (20, 798598), (40, 399299), (41, 389560), (82, 194780), (164, 97390), (205, 77912), (328, 48695), (410, 38956), (820, 19478), (1640, 9739)]