27808120

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1613}}^1$

素因数の和:2055

約数の個数: 32

約数和(自身を含む): 62752320

約数和(自身を除く): 34944200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1613, 1724, 2155, 3226, 3448, 4310, 6452, 8065, 8620, 12904, 16130, 17240, 32260, 64520, 695203, 1390406, 2780812, 3476015, 5561624, 6952030, 13904060, 27808120]

約数ペア:

[(1, 27808120), (2, 13904060), (4, 6952030), (5, 5561624), (8, 3476015), (10, 2780812), (20, 1390406), (40, 695203), (431, 64520), (862, 32260), (1613, 17240), (1724, 16130), (2155, 12904), (3226, 8620), (3448, 8065), (4310, 6452)]