18737640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:144

約数の個数: 192

約数和(自身を含む): 66493440

約数和(自身を除く): 47755800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 31, 36, 40, 45, 46, 60, 62, 69, 72, 73, 90, 92, 93, 115, 120, 124, 138, 146, 155, 180, 184, 186, 207, 219, 230, 248, 276, 279, 292, 310, 345, 360, 365, 372, 414, 438, 460, 465, 552, 558, 584, 620, 657, 690, 713, 730, 744, 828, 876, 920, 930, 1035, 1095, 1116, 1240, 1314, 1380, 1395, 1426, 1460, 1656, 1679, 1752, 1860, 2070, 2139, 2190, 2232, 2263, 2628, 2760, 2790, 2852, 2920, 3285, 3358, 3565, 3720, 4140, 4278, 4380, 4526, 5037, 5256, 5580, 5704, 6417, 6570, 6716, 6789, 7130, 8280, 8395, 8556, 8760, 9052, 10074, 10695, 11160, 11315, 12834, 13140, 13432, 13578, 14260, 15111, 16790, 17112, 18104, 20148, 20367, 21390, 22630, 25185, 25668, 26280, 27156, 28520, 30222, 32085, 33580, 33945, 40296, 40734, 42780, 45260, 50370, 51336, 52049, 54312, 60444, 64170, 67160, 67890, 75555, 81468, 85560, 90520, 100740, 101835, 104098, 120888, 128340, 135780, 151110, 156147, 162936, 201480, 203670, 208196, 256680, 260245, 271560, 302220, 312294, 407340, 416392, 468441, 520490, 604440, 624588, 780735, 814680, 936882, 1040980, 1249176, 1561470, 1873764, 2081960, 2342205, 3122940, 3747528, 4684410, 6245880, 9368820, 18737640]

約数ペア:

[(1, 18737640), (2, 9368820), (3, 6245880), (4, 4684410), (5, 3747528), (6, 3122940), (8, 2342205), (9, 2081960), (10, 1873764), (12, 1561470), (15, 1249176), (18, 1040980), (20, 936882), (23, 814680), (24, 780735), (30, 624588), (31, 604440), (36, 520490), (40, 468441), (45, 416392), (46, 407340), (60, 312294), (62, 302220), (69, 271560), (72, 260245), (73, 256680), (90, 208196), (92, 203670), (93, 201480), (115, 162936), (120, 156147), (124, 151110), (138, 135780), (146, 128340), (155, 120888), (180, 104098), (184, 101835), (186, 100740), (207, 90520), (219, 85560), (230, 81468), (248, 75555), (276, 67890), (279, 67160), (292, 64170), (310, 60444), (345, 54312), (360, 52049), (365, 51336), (372, 50370), (414, 45260), (438, 42780), (460, 40734), (465, 40296), (552, 33945), (558, 33580), (584, 32085), (620, 30222), (657, 28520), (690, 27156), (713, 26280), (730, 25668), (744, 25185), (828, 22630), (876, 21390), (920, 20367), (930, 20148), (1035, 18104), (1095, 17112), (1116, 16790), (1240, 15111), (1314, 14260), (1380, 13578), (1395, 13432), (1426, 13140), (1460, 12834), (1656, 11315), (1679, 11160), (1752, 10695), (1860, 10074), (2070, 9052), (2139, 8760), (2190, 8556), (2232, 8395), (2263, 8280), (2628, 7130), (2760, 6789), (2790, 6716), (2852, 6570), (2920, 6417), (3285, 5704), (3358, 5580), (3565, 5256), (3720, 5037), (4140, 4526), (4278, 4380)]