20917230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2713}}^1$

素因数の和:2980

約数の個数: 32

約数和(自身を含む): 50415264

約数和(自身を除く): 29498034

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 257, 514, 771, 1285, 1542, 2570, 2713, 3855, 5426, 7710, 8139, 13565, 16278, 27130, 40695, 81390, 697241, 1394482, 2091723, 3486205, 4183446, 6972410, 10458615, 20917230]

約数ペア:

[(1, 20917230), (2, 10458615), (3, 6972410), (5, 4183446), (6, 3486205), (10, 2091723), (15, 1394482), (30, 697241), (257, 81390), (514, 40695), (771, 27130), (1285, 16278), (1542, 13565), (2570, 8139), (2713, 7710), (3855, 5426)]