420685784

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{307}}^1\times {\mathrm{1663}}^1$

素因数の和:2079

約数の個数: 32

約数和(自身を含む): 799518720

約数和(自身を除く): 378832936

約数列:

[1, 2, 4, 8, 103, 206, 307, 412, 614, 824, 1228, 1663, 2456, 3326, 6652, 13304, 31621, 63242, 126484, 171289, 252968, 342578, 510541, 685156, 1021082, 1370312, 2042164, 4084328, 52585723, 105171446, 210342892, 420685784]

約数ペア:

[(1, 420685784), (2, 210342892), (4, 105171446), (8, 52585723), (103, 4084328), (206, 2042164), (307, 1370312), (412, 1021082), (614, 685156), (824, 510541), (1228, 342578), (1663, 252968), (2456, 171289), (3326, 126484), (6652, 63242), (13304, 31621)]