40262000

素因数分解:

$2^4\times 5^3\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:555

約数の個数: 80

約数和(自身を含む): 99931104

約数和(自身を除く): 59669104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 125, 164, 200, 205, 250, 328, 400, 410, 491, 500, 656, 820, 982, 1000, 1025, 1640, 1964, 2000, 2050, 2455, 3280, 3928, 4100, 4910, 5125, 7856, 8200, 9820, 10250, 12275, 16400, 19640, 20131, 20500, 24550, 39280, 40262, 41000, 49100, 61375, 80524, 82000, 98200, 100655, 122750, 161048, 196400, 201310, 245500, 322096, 402620, 491000, 503275, 805240, 982000, 1006550, 1610480, 2013100, 2516375, 4026200, 5032750, 8052400, 10065500, 20131000, 40262000]

約数ペア:

[(1, 40262000), (2, 20131000), (4, 10065500), (5, 8052400), (8, 5032750), (10, 4026200), (16, 2516375), (20, 2013100), (25, 1610480), (40, 1006550), (41, 982000), (50, 805240), (80, 503275), (82, 491000), (100, 402620), (125, 322096), (164, 245500), (200, 201310), (205, 196400), (250, 161048), (328, 122750), (400, 100655), (410, 98200), (491, 82000), (500, 80524), (656, 61375), (820, 49100), (982, 41000), (1000, 40262), (1025, 39280), (1640, 24550), (1964, 20500), (2000, 20131), (2050, 19640), (2455, 16400), (3280, 12275), (3928, 10250), (4100, 9820), (4910, 8200), (5125, 7856)]