28165060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18289}}^1$

素因数の和:18316

約数の個数: 48

約数和(自身を含む): 73745280

約数和(自身を除く): 45580220

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18289, 36578, 73156, 91445, 128023, 182890, 201179, 256046, 365780, 402358, 512092, 640115, 804716, 1005895, 1280230, 1408253, 2011790, 2560460, 2816506, 4023580, 5633012, 7041265, 14082530, 28165060]

約数ペア:

[(1, 28165060), (2, 14082530), (4, 7041265), (5, 5633012), (7, 4023580), (10, 2816506), (11, 2560460), (14, 2011790), (20, 1408253), (22, 1280230), (28, 1005895), (35, 804716), (44, 640115), (55, 512092), (70, 402358), (77, 365780), (110, 256046), (140, 201179), (154, 182890), (220, 128023), (308, 91445), (385, 73156), (770, 36578), (1540, 18289)]