261520240

素因数分解:

$2^4\times 5^1\times {\mathrm{587}}^1\times {\mathrm{5569}}^1$

素因数の和:6169

約数の個数: 40

約数和(自身を含む): 609179760

約数和(自身を除く): 347659520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 587, 1174, 2348, 2935, 4696, 5569, 5870, 9392, 11138, 11740, 22276, 23480, 27845, 44552, 46960, 55690, 89104, 111380, 222760, 445520, 3269003, 6538006, 13076012, 16345015, 26152024, 32690030, 52304048, 65380060, 130760120, 261520240]

約数ペア:

[(1, 261520240), (2, 130760120), (4, 65380060), (5, 52304048), (8, 32690030), (10, 26152024), (16, 16345015), (20, 13076012), (40, 6538006), (80, 3269003), (587, 445520), (1174, 222760), (2348, 111380), (2935, 89104), (4696, 55690), (5569, 46960), (5870, 44552), (9392, 27845), (11138, 23480), (11740, 22276)]