80022440

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3121}}^1$

素因数の和:3773

約数の個数: 32

約数和(自身を含む): 180389160

約数和(自身を除く): 100366720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3121, 3205, 5128, 6242, 6410, 12484, 12820, 15605, 24968, 25640, 31210, 62420, 124840, 2000561, 4001122, 8002244, 10002805, 16004488, 20005610, 40011220, 80022440]

約数ペア:

[(1, 80022440), (2, 40011220), (4, 20005610), (5, 16004488), (8, 10002805), (10, 8002244), (20, 4001122), (40, 2000561), (641, 124840), (1282, 62420), (2564, 31210), (3121, 25640), (3205, 24968), (5128, 15605), (6242, 12820), (6410, 12484)]