21552780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4547}}^1$

素因数の和:4638

約数の個数: 48

約数和(自身を含む): 61125120

約数和(自身を除く): 39572340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4547, 4740, 9094, 13641, 18188, 22735, 27282, 45470, 54564, 68205, 90940, 136410, 272820, 359213, 718426, 1077639, 1436852, 1796065, 2155278, 3592130, 4310556, 5388195, 7184260, 10776390, 21552780]

約数ペア:

[(1, 21552780), (2, 10776390), (3, 7184260), (4, 5388195), (5, 4310556), (6, 3592130), (10, 2155278), (12, 1796065), (15, 1436852), (20, 1077639), (30, 718426), (60, 359213), (79, 272820), (158, 136410), (237, 90940), (316, 68205), (395, 54564), (474, 45470), (790, 27282), (948, 22735), (1185, 18188), (1580, 13641), (2370, 9094), (4547, 4740)]