20140840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12281}}^1$

素因数の和:12333

約数の個数: 32

約数和(自身を含む): 46425960

約数和(自身を除く): 26285120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 12281, 24562, 49124, 61405, 98248, 122810, 245620, 491240, 503521, 1007042, 2014084, 2517605, 4028168, 5035210, 10070420, 20140840]

約数ペア:

[(1, 20140840), (2, 10070420), (4, 5035210), (5, 4028168), (8, 2517605), (10, 2014084), (20, 1007042), (40, 503521), (41, 491240), (82, 245620), (164, 122810), (205, 98248), (328, 61405), (410, 49124), (820, 24562), (1640, 12281)]