72621560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{165049}}^1$

素因数の和:165071

約数の個数: 32

約数和(自身を含む): 178254000

約数和(自身を除く): 105632440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 165049, 330098, 660196, 825245, 1320392, 1650490, 1815539, 3300980, 3631078, 6601960, 7262156, 9077695, 14524312, 18155390, 36310780, 72621560]

約数ペア:

[(1, 72621560), (2, 36310780), (4, 18155390), (5, 14524312), (8, 9077695), (10, 7262156), (11, 6601960), (20, 3631078), (22, 3300980), (40, 1815539), (44, 1650490), (55, 1320392), (88, 825245), (110, 660196), (220, 330098), (440, 165049)]