20129750

素因数分解:

$2^1\times 5^3\times {\mathrm{73}}^1\times {\mathrm{1103}}^1$

素因数の和:1193

約数の個数: 32

約数和(自身を含む): 38233728

約数和(自身を除く): 18103978

約数列:

[1, 2, 5, 10, 25, 50, 73, 125, 146, 250, 365, 730, 1103, 1825, 2206, 3650, 5515, 9125, 11030, 18250, 27575, 55150, 80519, 137875, 161038, 275750, 402595, 805190, 2012975, 4025950, 10064875, 20129750]

約数ペア:

[(1, 20129750), (2, 10064875), (5, 4025950), (10, 2012975), (25, 805190), (50, 402595), (73, 275750), (125, 161038), (146, 137875), (250, 80519), (365, 55150), (730, 27575), (1103, 18250), (1825, 11030), (2206, 9125), (3650, 5515)]