15966320

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1831}}^1$

素因数の和:1953

約数の個数: 40

約数和(自身を含む): 37482720

約数和(自身を除く): 21516400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 1831, 2180, 3662, 4360, 7324, 8720, 9155, 14648, 18310, 29296, 36620, 73240, 146480, 199579, 399158, 798316, 997895, 1596632, 1995790, 3193264, 3991580, 7983160, 15966320]

約数ペア:

[(1, 15966320), (2, 7983160), (4, 3991580), (5, 3193264), (8, 1995790), (10, 1596632), (16, 997895), (20, 798316), (40, 399158), (80, 199579), (109, 146480), (218, 73240), (436, 36620), (545, 29296), (872, 18310), (1090, 14648), (1744, 9155), (1831, 8720), (2180, 7324), (3662, 4360)]