6400120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^2$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 14980680

約数和(自身を除く): 8580560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 86, 122, 172, 215, 244, 305, 344, 430, 488, 610, 860, 1220, 1720, 2440, 2623, 3721, 5246, 7442, 10492, 13115, 14884, 18605, 20984, 26230, 29768, 37210, 52460, 74420, 104920, 148840, 160003, 320006, 640012, 800015, 1280024, 1600030, 3200060, 6400120]

約数ペア:

[(1, 6400120), (2, 3200060), (4, 1600030), (5, 1280024), (8, 800015), (10, 640012), (20, 320006), (40, 160003), (43, 148840), (61, 104920), (86, 74420), (122, 52460), (172, 37210), (215, 29768), (244, 26230), (305, 20984), (344, 18605), (430, 14884), (488, 13115), (610, 10492), (860, 7442), (1220, 5246), (1720, 3721), (2440, 2623)]