199654980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{475369}}^1$

素因数の和:475388

約数の個数: 48

約数和(自身を含む): 638897280

約数和(自身を除く): 439242300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 475369, 950738, 1426107, 1901476, 2376845, 2852214, 3327583, 4753690, 5704428, 6655166, 7130535, 9507380, 9982749, 13310332, 14261070, 16637915, 19965498, 28522140, 33275830, 39930996, 49913745, 66551660, 99827490, 199654980]

約数ペア:

[(1, 199654980), (2, 99827490), (3, 66551660), (4, 49913745), (5, 39930996), (6, 33275830), (7, 28522140), (10, 19965498), (12, 16637915), (14, 14261070), (15, 13310332), (20, 9982749), (21, 9507380), (28, 7130535), (30, 6655166), (35, 5704428), (42, 4753690), (60, 3327583), (70, 2852214), (84, 2376845), (105, 1901476), (140, 1426107), (210, 950738), (420, 475369)]