2106140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 4730880

約数和(自身を除く): 2624740

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 79, 86, 124, 155, 158, 172, 215, 310, 316, 395, 430, 620, 790, 860, 1333, 1580, 2449, 2666, 3397, 4898, 5332, 6665, 6794, 9796, 12245, 13330, 13588, 16985, 24490, 26660, 33970, 48980, 67940, 105307, 210614, 421228, 526535, 1053070, 2106140]

約数ペア:

[(1, 2106140), (2, 1053070), (4, 526535), (5, 421228), (10, 210614), (20, 105307), (31, 67940), (43, 48980), (62, 33970), (79, 26660), (86, 24490), (124, 16985), (155, 13588), (158, 13330), (172, 12245), (215, 9796), (310, 6794), (316, 6665), (395, 5332), (430, 4898), (620, 3397), (790, 2666), (860, 2449), (1333, 1580)]