18748040

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5647}}^1$

素因数の和:5741

約数の個数: 32

約数和(自身を含む): 42698880

約数和(自身を除く): 23950840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 5647, 11294, 22588, 28235, 45176, 56470, 112940, 225880, 468701, 937402, 1874804, 2343505, 3749608, 4687010, 9374020, 18748040]

約数ペア:

[(1, 18748040), (2, 9374020), (4, 4687010), (5, 3749608), (8, 2343505), (10, 1874804), (20, 937402), (40, 468701), (83, 225880), (166, 112940), (332, 56470), (415, 45176), (664, 28235), (830, 22588), (1660, 11294), (3320, 5647)]