19405760

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:214

約数の個数: 112

約数和(自身を含む): 52120800

約数和(自身を除く): 32715040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 37, 40, 44, 55, 64, 74, 80, 88, 110, 148, 149, 160, 176, 185, 220, 296, 298, 320, 352, 370, 407, 440, 592, 596, 704, 740, 745, 814, 880, 1184, 1192, 1480, 1490, 1628, 1639, 1760, 2035, 2368, 2384, 2960, 2980, 3256, 3278, 3520, 4070, 4768, 5513, 5920, 5960, 6512, 6556, 8140, 8195, 9536, 11026, 11840, 11920, 13024, 13112, 16280, 16390, 22052, 23840, 26048, 26224, 27565, 32560, 32780, 44104, 47680, 52448, 55130, 60643, 65120, 65560, 88208, 104896, 110260, 121286, 130240, 131120, 176416, 220520, 242572, 262240, 303215, 352832, 441040, 485144, 524480, 606430, 882080, 970288, 1212860, 1764160, 1940576, 2425720, 3881152, 4851440, 9702880, 19405760]

約数ペア:

[(1, 19405760), (2, 9702880), (4, 4851440), (5, 3881152), (8, 2425720), (10, 1940576), (11, 1764160), (16, 1212860), (20, 970288), (22, 882080), (32, 606430), (37, 524480), (40, 485144), (44, 441040), (55, 352832), (64, 303215), (74, 262240), (80, 242572), (88, 220520), (110, 176416), (148, 131120), (149, 130240), (160, 121286), (176, 110260), (185, 104896), (220, 88208), (296, 65560), (298, 65120), (320, 60643), (352, 55130), (370, 52448), (407, 47680), (440, 44104), (592, 32780), (596, 32560), (704, 27565), (740, 26224), (745, 26048), (814, 23840), (880, 22052), (1184, 16390), (1192, 16280), (1480, 13112), (1490, 13024), (1628, 11920), (1639, 11840), (1760, 11026), (2035, 9536), (2368, 8195), (2384, 8140), (2960, 6556), (2980, 6512), (3256, 5960), (3278, 5920), (3520, 5513), (4070, 4768)]