1298156920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{690509}}^1$

素因数の和:690567

約数の個数: 32

約数和(自身を含む): 2983003200

約数和(自身を除く): 1684846280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 690509, 1381018, 2762036, 3452545, 5524072, 6905090, 13810180, 27620360, 32453923, 64907846, 129815692, 162269615, 259631384, 324539230, 649078460, 1298156920]

約数ペア:

[(1, 1298156920), (2, 649078460), (4, 324539230), (5, 259631384), (8, 162269615), (10, 129815692), (20, 64907846), (40, 32453923), (47, 27620360), (94, 13810180), (188, 6905090), (235, 5524072), (376, 3452545), (470, 2762036), (940, 1381018), (1880, 690509)]