440003590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{7853}}^1$

素因数の和:8304

約数の個数: 32

約数和(自身を含む): 855017856

約数和(自身を除く): 415014266

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 431, 862, 2155, 4310, 5603, 7853, 11206, 15706, 28015, 39265, 56030, 78530, 102089, 204178, 510445, 1020890, 3384643, 6769286, 16923215, 33846430, 44000359, 88000718, 220001795, 440003590]

約数ペア:

[(1, 440003590), (2, 220001795), (5, 88000718), (10, 44000359), (13, 33846430), (26, 16923215), (65, 6769286), (130, 3384643), (431, 1020890), (862, 510445), (2155, 204178), (4310, 102089), (5603, 78530), (7853, 56030), (11206, 39265), (15706, 28015)]