15279320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{277}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 39631680

約数和(自身を除く): 24352360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 277, 280, 394, 554, 788, 985, 1108, 1379, 1385, 1576, 1939, 1970, 2216, 2758, 2770, 3878, 3940, 5516, 5540, 6895, 7756, 7880, 9695, 11032, 11080, 13790, 15512, 19390, 27580, 38780, 54569, 55160, 77560, 109138, 218276, 272845, 381983, 436552, 545690, 763966, 1091380, 1527932, 1909915, 2182760, 3055864, 3819830, 7639660, 15279320]

約数ペア:

[(1, 15279320), (2, 7639660), (4, 3819830), (5, 3055864), (7, 2182760), (8, 1909915), (10, 1527932), (14, 1091380), (20, 763966), (28, 545690), (35, 436552), (40, 381983), (56, 272845), (70, 218276), (140, 109138), (197, 77560), (277, 55160), (280, 54569), (394, 38780), (554, 27580), (788, 19390), (985, 15512), (1108, 13790), (1379, 11080), (1385, 11032), (1576, 9695), (1939, 7880), (1970, 7756), (2216, 6895), (2758, 5540), (2770, 5516), (3878, 3940)]