19460040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{631}}^1$

素因数の和:902

約数の個数: 64

約数和(自身を含む): 58700160

約数和(自身を除く): 39240120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 514, 631, 771, 1028, 1262, 1285, 1542, 1893, 2056, 2524, 2570, 3084, 3155, 3786, 3855, 5048, 5140, 6168, 6310, 7572, 7710, 9465, 10280, 12620, 15144, 15420, 18930, 25240, 30840, 37860, 75720, 162167, 324334, 486501, 648668, 810835, 973002, 1297336, 1621670, 1946004, 2432505, 3243340, 3892008, 4865010, 6486680, 9730020, 19460040]

約数ペア:

[(1, 19460040), (2, 9730020), (3, 6486680), (4, 4865010), (5, 3892008), (6, 3243340), (8, 2432505), (10, 1946004), (12, 1621670), (15, 1297336), (20, 973002), (24, 810835), (30, 648668), (40, 486501), (60, 324334), (120, 162167), (257, 75720), (514, 37860), (631, 30840), (771, 25240), (1028, 18930), (1262, 15420), (1285, 15144), (1542, 12620), (1893, 10280), (2056, 9465), (2524, 7710), (2570, 7572), (3084, 6310), (3155, 6168), (3786, 5140), (3855, 5048)]