12021940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1997}}^1$

素因数の和:2056

約数の個数: 48

約数和(自身を含む): 29538432

約数和(自身を除く): 17516492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 1997, 3010, 3994, 6020, 7988, 9985, 13979, 19970, 27958, 39940, 55916, 69895, 85871, 139790, 171742, 279580, 343484, 429355, 601097, 858710, 1202194, 1717420, 2404388, 3005485, 6010970, 12021940]

約数ペア:

[(1, 12021940), (2, 6010970), (4, 3005485), (5, 2404388), (7, 1717420), (10, 1202194), (14, 858710), (20, 601097), (28, 429355), (35, 343484), (43, 279580), (70, 171742), (86, 139790), (140, 85871), (172, 69895), (215, 55916), (301, 39940), (430, 27958), (602, 19970), (860, 13979), (1204, 9985), (1505, 7988), (1997, 6020), (3010, 3994)]