19802040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3511}}^1$

素因数の和:3572

約数の個数: 64

約数和(自身を含む): 60687360

約数和(自身を除く): 40885320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 3511, 5640, 7022, 10533, 14044, 17555, 21066, 28088, 35110, 42132, 52665, 70220, 84264, 105330, 140440, 165017, 210660, 330034, 421320, 495051, 660068, 825085, 990102, 1320136, 1650170, 1980204, 2475255, 3300340, 3960408, 4950510, 6600680, 9901020, 19802040]

約数ペア:

[(1, 19802040), (2, 9901020), (3, 6600680), (4, 4950510), (5, 3960408), (6, 3300340), (8, 2475255), (10, 1980204), (12, 1650170), (15, 1320136), (20, 990102), (24, 825085), (30, 660068), (40, 495051), (47, 421320), (60, 330034), (94, 210660), (120, 165017), (141, 140440), (188, 105330), (235, 84264), (282, 70220), (376, 52665), (470, 42132), (564, 35110), (705, 28088), (940, 21066), (1128, 17555), (1410, 14044), (1880, 10533), (2820, 7022), (3511, 5640)]