78653960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{25537}}^1$

素因数の和:25566

約数の個数: 64

約数和(自身を含む): 220648320

約数和(自身を除く): 141994360

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 25537, 51074, 102148, 127685, 178759, 204296, 255370, 280907, 357518, 510740, 561814, 715036, 893795, 1021480, 1123628, 1404535, 1430072, 1787590, 1966349, 2247256, 2809070, 3575180, 3932698, 5618140, 7150360, 7865396, 9831745, 11236280, 15730792, 19663490, 39326980, 78653960]

約数ペア:

[(1, 78653960), (2, 39326980), (4, 19663490), (5, 15730792), (7, 11236280), (8, 9831745), (10, 7865396), (11, 7150360), (14, 5618140), (20, 3932698), (22, 3575180), (28, 2809070), (35, 2247256), (40, 1966349), (44, 1787590), (55, 1430072), (56, 1404535), (70, 1123628), (77, 1021480), (88, 893795), (110, 715036), (140, 561814), (154, 510740), (220, 357518), (280, 280907), (308, 255370), (385, 204296), (440, 178759), (616, 127685), (770, 102148), (1540, 51074), (3080, 25537)]