19418520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 65111040

約数和(自身を除く): 45692520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 47, 55, 60, 66, 88, 94, 110, 120, 132, 141, 165, 188, 220, 235, 264, 282, 313, 330, 376, 440, 470, 517, 564, 626, 660, 705, 939, 940, 1034, 1128, 1252, 1320, 1410, 1551, 1565, 1878, 1880, 2068, 2504, 2585, 2820, 3102, 3130, 3443, 3756, 4136, 4695, 5170, 5640, 6204, 6260, 6886, 7512, 7755, 9390, 10329, 10340, 12408, 12520, 13772, 14711, 15510, 17215, 18780, 20658, 20680, 27544, 29422, 31020, 34430, 37560, 41316, 44133, 51645, 58844, 62040, 68860, 73555, 82632, 88266, 103290, 117688, 137720, 147110, 161821, 176532, 206580, 220665, 294220, 323642, 353064, 413160, 441330, 485463, 588440, 647284, 809105, 882660, 970926, 1294568, 1618210, 1765320, 1941852, 2427315, 3236420, 3883704, 4854630, 6472840, 9709260, 19418520]

約数ペア:

[(1, 19418520), (2, 9709260), (3, 6472840), (4, 4854630), (5, 3883704), (6, 3236420), (8, 2427315), (10, 1941852), (11, 1765320), (12, 1618210), (15, 1294568), (20, 970926), (22, 882660), (24, 809105), (30, 647284), (33, 588440), (40, 485463), (44, 441330), (47, 413160), (55, 353064), (60, 323642), (66, 294220), (88, 220665), (94, 206580), (110, 176532), (120, 161821), (132, 147110), (141, 137720), (165, 117688), (188, 103290), (220, 88266), (235, 82632), (264, 73555), (282, 68860), (313, 62040), (330, 58844), (376, 51645), (440, 44133), (470, 41316), (517, 37560), (564, 34430), (626, 31020), (660, 29422), (705, 27544), (939, 20680), (940, 20658), (1034, 18780), (1128, 17215), (1252, 15510), (1320, 14711), (1410, 13772), (1551, 12520), (1565, 12408), (1878, 10340), (1880, 10329), (2068, 9390), (2504, 7755), (2585, 7512), (2820, 6886), (3102, 6260), (3130, 6204), (3443, 5640), (3756, 5170), (4136, 4695)]