12617720

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{953}}^1$

素因数の和:1295

約数の個数: 32

約数和(自身を含む): 28505520

約数和(自身を除く): 15887800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 953, 1324, 1655, 1906, 2648, 3310, 3812, 4765, 6620, 7624, 9530, 13240, 19060, 38120, 315443, 630886, 1261772, 1577215, 2523544, 3154430, 6308860, 12617720]

約数ペア:

[(1, 12617720), (2, 6308860), (4, 3154430), (5, 2523544), (8, 1577215), (10, 1261772), (20, 630886), (40, 315443), (331, 38120), (662, 19060), (953, 13240), (1324, 9530), (1655, 7624), (1906, 6620), (2648, 4765), (3310, 3812)]