13181990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1549}}^1$

素因数の和:1616

約数の個数: 32

約数和(自身を含む): 25444800

約数和(自身を除く): 12262810

約数列:

[1, 2, 5, 10, 23, 37, 46, 74, 115, 185, 230, 370, 851, 1549, 1702, 3098, 4255, 7745, 8510, 15490, 35627, 57313, 71254, 114626, 178135, 286565, 356270, 573130, 1318199, 2636398, 6590995, 13181990]

約数ペア:

[(1, 13181990), (2, 6590995), (5, 2636398), (10, 1318199), (23, 573130), (37, 356270), (46, 286565), (74, 178135), (115, 114626), (185, 71254), (230, 57313), (370, 35627), (851, 15490), (1549, 8510), (1702, 7745), (3098, 4255)]