1221765456

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{687931}}^1$

素因数の和:687979

約数の個数: 40

約数和(自身を含む): 3241535584

約数和(自身を除く): 2019770128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 74, 111, 148, 222, 296, 444, 592, 888, 1776, 687931, 1375862, 2063793, 2751724, 4127586, 5503448, 8255172, 11006896, 16510344, 25453447, 33020688, 50906894, 76360341, 101813788, 152720682, 203627576, 305441364, 407255152, 610882728, 1221765456]

約数ペア:

[(1, 1221765456), (2, 610882728), (3, 407255152), (4, 305441364), (6, 203627576), (8, 152720682), (12, 101813788), (16, 76360341), (24, 50906894), (37, 33020688), (48, 25453447), (74, 16510344), (111, 11006896), (148, 8255172), (222, 5503448), (296, 4127586), (444, 2751724), (592, 2063793), (888, 1375862), (1776, 687931)]