2489969320

素因数分解:

$2^3\times 5^1\times {\mathrm{2447}}^1\times {\mathrm{25439}}^1$

素因数の和:27897

約数の個数: 32

約数和(自身を含む): 5604940800

約数和(自身を除く): 3114971480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2447, 4894, 9788, 12235, 19576, 24470, 25439, 48940, 50878, 97880, 101756, 127195, 203512, 254390, 508780, 1017560, 62249233, 124498466, 248996932, 311246165, 497993864, 622492330, 1244984660, 2489969320]

約数ペア:

[(1, 2489969320), (2, 1244984660), (4, 622492330), (5, 497993864), (8, 311246165), (10, 248996932), (20, 124498466), (40, 62249233), (2447, 1017560), (4894, 508780), (9788, 254390), (12235, 203512), (19576, 127195), (24470, 101756), (25439, 97880), (48940, 50878)]