1253840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2239}}^1$

素因数の和:2259

約数の個数: 40

約数和(自身を含む): 3333120

約数和(自身を除く): 2079280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2239, 4478, 8956, 11195, 15673, 17912, 22390, 31346, 35824, 44780, 62692, 78365, 89560, 125384, 156730, 179120, 250768, 313460, 626920, 1253840]

約数ペア:

[(1, 1253840), (2, 626920), (4, 313460), (5, 250768), (7, 179120), (8, 156730), (10, 125384), (14, 89560), (16, 78365), (20, 62692), (28, 44780), (35, 35824), (40, 31346), (56, 22390), (70, 17912), (80, 15673), (112, 11195), (140, 8956), (280, 4478), (560, 2239)]