68738940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:248

約数の個数: 144

約数和(自身を含む): 217945728

約数和(自身を除く): 149206788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 83, 86, 90, 107, 129, 166, 172, 180, 214, 215, 249, 258, 321, 332, 387, 415, 428, 430, 498, 516, 535, 642, 645, 747, 774, 830, 860, 963, 996, 1070, 1245, 1284, 1290, 1494, 1548, 1605, 1660, 1926, 1935, 2140, 2490, 2580, 2988, 3210, 3569, 3735, 3852, 3870, 4601, 4815, 4980, 6420, 7138, 7470, 7740, 8881, 9202, 9630, 10707, 13803, 14276, 14940, 17762, 17845, 18404, 19260, 21414, 23005, 26643, 27606, 32121, 35524, 35690, 41409, 42828, 44405, 46010, 53286, 53535, 55212, 64242, 69015, 71380, 79929, 82818, 88810, 92020, 106572, 107070, 128484, 133215, 138030, 159858, 160605, 165636, 177620, 207045, 214140, 266430, 276060, 319716, 321210, 381883, 399645, 414090, 532860, 642420, 763766, 799290, 828180, 1145649, 1527532, 1598580, 1909415, 2291298, 3436947, 3818830, 4582596, 5728245, 6873894, 7637660, 11456490, 13747788, 17184735, 22912980, 34369470, 68738940]

約数ペア:

[(1, 68738940), (2, 34369470), (3, 22912980), (4, 17184735), (5, 13747788), (6, 11456490), (9, 7637660), (10, 6873894), (12, 5728245), (15, 4582596), (18, 3818830), (20, 3436947), (30, 2291298), (36, 1909415), (43, 1598580), (45, 1527532), (60, 1145649), (83, 828180), (86, 799290), (90, 763766), (107, 642420), (129, 532860), (166, 414090), (172, 399645), (180, 381883), (214, 321210), (215, 319716), (249, 276060), (258, 266430), (321, 214140), (332, 207045), (387, 177620), (415, 165636), (428, 160605), (430, 159858), (498, 138030), (516, 133215), (535, 128484), (642, 107070), (645, 106572), (747, 92020), (774, 88810), (830, 82818), (860, 79929), (963, 71380), (996, 69015), (1070, 64242), (1245, 55212), (1284, 53535), (1290, 53286), (1494, 46010), (1548, 44405), (1605, 42828), (1660, 41409), (1926, 35690), (1935, 35524), (2140, 32121), (2490, 27606), (2580, 26643), (2988, 23005), (3210, 21414), (3569, 19260), (3735, 18404), (3852, 17845), (3870, 17762), (4601, 14940), (4815, 14276), (4980, 13803), (6420, 10707), (7138, 9630), (7470, 9202), (7740, 8881)]