15570640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^2$

素因数の和:244

約数の個数: 60

約数和(自身を含む): 38692836

約数和(自身を除く): 23122196

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 107, 136, 170, 214, 272, 340, 428, 535, 680, 856, 1070, 1360, 1712, 1819, 2140, 3638, 4280, 7276, 8560, 9095, 11449, 14552, 18190, 22898, 29104, 36380, 45796, 57245, 72760, 91592, 114490, 145520, 183184, 194633, 228980, 389266, 457960, 778532, 915920, 973165, 1557064, 1946330, 3114128, 3892660, 7785320, 15570640]

約数ペア:

[(1, 15570640), (2, 7785320), (4, 3892660), (5, 3114128), (8, 1946330), (10, 1557064), (16, 973165), (17, 915920), (20, 778532), (34, 457960), (40, 389266), (68, 228980), (80, 194633), (85, 183184), (107, 145520), (136, 114490), (170, 91592), (214, 72760), (272, 57245), (340, 45796), (428, 36380), (535, 29104), (680, 22898), (856, 18190), (1070, 14552), (1360, 11449), (1712, 9095), (1819, 8560), (2140, 7276), (3638, 4280)]