1320220520

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{57803}}^1$

素因数の和:58385

約数の個数: 32

約数和(自身を含む): 2975749920

約数和(自身を除く): 1655529400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 1142, 2284, 2855, 4568, 5710, 11420, 22840, 57803, 115606, 231212, 289015, 462424, 578030, 1156060, 2312120, 33005513, 66011026, 132022052, 165027565, 264044104, 330055130, 660110260, 1320220520]

約数ペア:

[(1, 1320220520), (2, 660110260), (4, 330055130), (5, 264044104), (8, 165027565), (10, 132022052), (20, 66011026), (40, 33005513), (571, 2312120), (1142, 1156060), (2284, 578030), (2855, 462424), (4568, 289015), (5710, 231212), (11420, 115606), (22840, 57803)]