18547750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{439}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 37683360

約数和(自身を除く): 19135610

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 169, 250, 325, 338, 439, 650, 845, 878, 1625, 1690, 2195, 3250, 4225, 4390, 5707, 8450, 10975, 11414, 21125, 21950, 28535, 42250, 54875, 57070, 74191, 109750, 142675, 148382, 285350, 370955, 713375, 741910, 1426750, 1854775, 3709550, 9273875, 18547750]

約数ペア:

[(1, 18547750), (2, 9273875), (5, 3709550), (10, 1854775), (13, 1426750), (25, 741910), (26, 713375), (50, 370955), (65, 285350), (125, 148382), (130, 142675), (169, 109750), (250, 74191), (325, 57070), (338, 54875), (439, 42250), (650, 28535), (845, 21950), (878, 21125), (1625, 11414), (1690, 10975), (2195, 8450), (3250, 5707), (4225, 4390)]