18555720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1531}}^1$

素因数の和:1646

約数の個数: 64

約数和(自身を含む): 56255040

約数和(自身を除く): 37699320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 101, 120, 202, 303, 404, 505, 606, 808, 1010, 1212, 1515, 1531, 2020, 2424, 3030, 3062, 4040, 4593, 6060, 6124, 7655, 9186, 12120, 12248, 15310, 18372, 22965, 30620, 36744, 45930, 61240, 91860, 154631, 183720, 309262, 463893, 618524, 773155, 927786, 1237048, 1546310, 1855572, 2319465, 3092620, 3711144, 4638930, 6185240, 9277860, 18555720]

約数ペア:

[(1, 18555720), (2, 9277860), (3, 6185240), (4, 4638930), (5, 3711144), (6, 3092620), (8, 2319465), (10, 1855572), (12, 1546310), (15, 1237048), (20, 927786), (24, 773155), (30, 618524), (40, 463893), (60, 309262), (101, 183720), (120, 154631), (202, 91860), (303, 61240), (404, 45930), (505, 36744), (606, 30620), (808, 22965), (1010, 18372), (1212, 15310), (1515, 12248), (1531, 12120), (2020, 9186), (2424, 7655), (3030, 6124), (3062, 6060), (4040, 4593)]