315049720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{110933}}^1$

素因数の和:111015

約数の個数: 32

約数和(自身を含む): 718852320

約数和(自身を除く): 403802600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 110933, 221866, 443732, 554665, 887464, 1109330, 2218660, 4437320, 7876243, 15752486, 31504972, 39381215, 63009944, 78762430, 157524860, 315049720]

約数ペア:

[(1, 315049720), (2, 157524860), (4, 78762430), (5, 63009944), (8, 39381215), (10, 31504972), (20, 15752486), (40, 7876243), (71, 4437320), (142, 2218660), (284, 1109330), (355, 887464), (568, 554665), (710, 443732), (1420, 221866), (2840, 110933)]