129454940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{1381}}^1$

素因数の和:1542

約数の個数: 48

約数和(自身を含む): 280932960

約数和(自身を除く): 151478020

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 109, 172, 215, 218, 430, 436, 545, 860, 1090, 1381, 2180, 2762, 4687, 5524, 6905, 9374, 13810, 18748, 23435, 27620, 46870, 59383, 93740, 118766, 150529, 237532, 296915, 301058, 593830, 602116, 752645, 1187660, 1505290, 3010580, 6472747, 12945494, 25890988, 32363735, 64727470, 129454940]

約数ペア:

[(1, 129454940), (2, 64727470), (4, 32363735), (5, 25890988), (10, 12945494), (20, 6472747), (43, 3010580), (86, 1505290), (109, 1187660), (172, 752645), (215, 602116), (218, 593830), (430, 301058), (436, 296915), (545, 237532), (860, 150529), (1090, 118766), (1381, 93740), (2180, 59383), (2762, 46870), (4687, 27620), (5524, 23435), (6905, 18748), (9374, 13810)]