19862190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1109}}^1$

素因数の和:1321

約数の個数: 48

約数和(自身を含む): 51948000

約数和(自身を除く): 32085810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 199, 398, 597, 995, 1109, 1194, 1791, 1990, 2218, 2985, 3327, 3582, 5545, 5970, 6654, 8955, 9981, 11090, 16635, 17910, 19962, 33270, 49905, 99810, 220691, 441382, 662073, 1103455, 1324146, 1986219, 2206910, 3310365, 3972438, 6620730, 9931095, 19862190]

約数ペア:

[(1, 19862190), (2, 9931095), (3, 6620730), (5, 3972438), (6, 3310365), (9, 2206910), (10, 1986219), (15, 1324146), (18, 1103455), (30, 662073), (45, 441382), (90, 220691), (199, 99810), (398, 49905), (597, 33270), (995, 19962), (1109, 17910), (1194, 16635), (1791, 11090), (1990, 9981), (2218, 8955), (2985, 6654), (3327, 5970), (3582, 5545)]