1278800

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:180

約数の個数: 60

約数和(自身を含む): 3228960

約数和(自身を除く): 1950160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 139, 184, 200, 230, 278, 368, 400, 460, 556, 575, 695, 920, 1112, 1150, 1390, 1840, 2224, 2300, 2780, 3197, 3475, 4600, 5560, 6394, 6950, 9200, 11120, 12788, 13900, 15985, 25576, 27800, 31970, 51152, 55600, 63940, 79925, 127880, 159850, 255760, 319700, 639400, 1278800]

約数ペア:

[(1, 1278800), (2, 639400), (4, 319700), (5, 255760), (8, 159850), (10, 127880), (16, 79925), (20, 63940), (23, 55600), (25, 51152), (40, 31970), (46, 27800), (50, 25576), (80, 15985), (92, 13900), (100, 12788), (115, 11120), (139, 9200), (184, 6950), (200, 6394), (230, 5560), (278, 4600), (368, 3475), (400, 3197), (460, 2780), (556, 2300), (575, 2224), (695, 1840), (920, 1390), (1112, 1150)]