28710260

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 62152272

約数和(自身を除く): 33442012

約数列:

[1, 2, 4, 5, 10, 20, 61, 101, 122, 202, 233, 244, 305, 404, 466, 505, 610, 932, 1010, 1165, 1220, 2020, 2330, 4660, 6161, 12322, 14213, 23533, 24644, 28426, 30805, 47066, 56852, 61610, 71065, 94132, 117665, 123220, 142130, 235330, 284260, 470660, 1435513, 2871026, 5742052, 7177565, 14355130, 28710260]

約数ペア:

[(1, 28710260), (2, 14355130), (4, 7177565), (5, 5742052), (10, 2871026), (20, 1435513), (61, 470660), (101, 284260), (122, 235330), (202, 142130), (233, 123220), (244, 117665), (305, 94132), (404, 71065), (466, 61610), (505, 56852), (610, 47066), (932, 30805), (1010, 28426), (1165, 24644), (1220, 23533), (2020, 14213), (2330, 12322), (4660, 6161)]