16040840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9781}}^1$

素因数の和:9833

約数の個数: 32

約数和(自身を含む): 36975960

約数和(自身を除く): 20935120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 9781, 19562, 39124, 48905, 78248, 97810, 195620, 391240, 401021, 802042, 1604084, 2005105, 3208168, 4010210, 8020420, 16040840]

約数ペア:

[(1, 16040840), (2, 8020420), (4, 4010210), (5, 3208168), (8, 2005105), (10, 1604084), (20, 802042), (40, 401021), (41, 391240), (82, 195620), (164, 97810), (205, 78248), (328, 48905), (410, 39124), (820, 19562), (1640, 9781)]