640291560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{5335763}}^1$

素因数の和:5335777

約数の個数: 32

約数和(自身を含む): 1920875040

約数和(自身を除く): 1280583480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 5335763, 10671526, 16007289, 21343052, 26678815, 32014578, 42686104, 53357630, 64029156, 80036445, 106715260, 128058312, 160072890, 213430520, 320145780, 640291560]

約数ペア:

[(1, 640291560), (2, 320145780), (3, 213430520), (4, 160072890), (5, 128058312), (6, 106715260), (8, 80036445), (10, 64029156), (12, 53357630), (15, 42686104), (20, 32014578), (24, 26678815), (30, 21343052), (40, 16007289), (60, 10671526), (120, 5335763)]