20512007200

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{15271}}^1$

素因数の和:15387

約数の個数: 144

約数和(自身を含む): 52971359616

約数和(自身を除く): 32459352416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 73, 80, 92, 100, 115, 146, 160, 184, 200, 230, 292, 365, 368, 400, 460, 575, 584, 730, 736, 800, 920, 1150, 1168, 1460, 1679, 1825, 1840, 2300, 2336, 2920, 3358, 3650, 3680, 4600, 5840, 6716, 7300, 8395, 9200, 11680, 13432, 14600, 15271, 16790, 18400, 26864, 29200, 30542, 33580, 41975, 53728, 58400, 61084, 67160, 76355, 83950, 122168, 134320, 152710, 167900, 244336, 268640, 305420, 335800, 351233, 381775, 488672, 610840, 671600, 702466, 763550, 1114783, 1221680, 1343200, 1404932, 1527100, 1756165, 2229566, 2443360, 2809864, 3054200, 3512330, 4459132, 5573915, 5619728, 6108400, 7024660, 8780825, 8918264, 11147830, 11239456, 12216800, 14049320, 17561650, 17836528, 22295660, 25640009, 27869575, 28098640, 35123300, 35673056, 44591320, 51280018, 55739150, 56197280, 70246600, 89182640, 102560036, 111478300, 128200045, 140493200, 178365280, 205120072, 222956600, 256400090, 280986400, 410240144, 445913200, 512800180, 641000225, 820480288, 891826400, 1025600360, 1282000450, 2051200720, 2564000900, 4102401440, 5128001800, 10256003600, 20512007200]

約数ペア:

[(1, 20512007200), (2, 10256003600), (4, 5128001800), (5, 4102401440), (8, 2564000900), (10, 2051200720), (16, 1282000450), (20, 1025600360), (23, 891826400), (25, 820480288), (32, 641000225), (40, 512800180), (46, 445913200), (50, 410240144), (73, 280986400), (80, 256400090), (92, 222956600), (100, 205120072), (115, 178365280), (146, 140493200), (160, 128200045), (184, 111478300), (200, 102560036), (230, 89182640), (292, 70246600), (365, 56197280), (368, 55739150), (400, 51280018), (460, 44591320), (575, 35673056), (584, 35123300), (730, 28098640), (736, 27869575), (800, 25640009), (920, 22295660), (1150, 17836528), (1168, 17561650), (1460, 14049320), (1679, 12216800), (1825, 11239456), (1840, 11147830), (2300, 8918264), (2336, 8780825), (2920, 7024660), (3358, 6108400), (3650, 5619728), (3680, 5573915), (4600, 4459132), (5840, 3512330), (6716, 3054200), (7300, 2809864), (8395, 2443360), (9200, 2229566), (11680, 1756165), (13432, 1527100), (14600, 1404932), (15271, 1343200), (16790, 1221680), (18400, 1114783), (26864, 763550), (29200, 702466), (30542, 671600), (33580, 610840), (41975, 488672), (53728, 381775), (58400, 351233), (61084, 335800), (67160, 305420), (76355, 268640), (83950, 244336), (122168, 167900), (134320, 152710)]