401036840

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{50893}}^1$

素因数の和:51101

約数の個数: 32

約数和(自身を含む): 906931080

約数和(自身を除く): 505894240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 50893, 101786, 203572, 254465, 407144, 508930, 1017860, 2035720, 10025921, 20051842, 40103684, 50129605, 80207368, 100259210, 200518420, 401036840]

約数ペア:

[(1, 401036840), (2, 200518420), (4, 100259210), (5, 80207368), (8, 50129605), (10, 40103684), (20, 20051842), (40, 10025921), (197, 2035720), (394, 1017860), (788, 508930), (985, 407144), (1576, 254465), (1970, 203572), (3940, 101786), (7880, 50893)]