128640120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4139}}^1$

素因数の和:4197

約数の個数: 128

約数和(自身を含む): 453081600

約数和(自身を除く): 324441480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 105, 111, 120, 140, 148, 168, 185, 210, 222, 259, 280, 296, 370, 420, 444, 518, 555, 740, 777, 840, 888, 1036, 1110, 1295, 1480, 1554, 2072, 2220, 2590, 3108, 3885, 4139, 4440, 5180, 6216, 7770, 8278, 10360, 12417, 15540, 16556, 20695, 24834, 28973, 31080, 33112, 41390, 49668, 57946, 62085, 82780, 86919, 99336, 115892, 124170, 144865, 153143, 165560, 173838, 231784, 248340, 289730, 306286, 347676, 434595, 459429, 496680, 579460, 612572, 695352, 765715, 869190, 918858, 1072001, 1158920, 1225144, 1531430, 1738380, 1837716, 2144002, 2297145, 3062860, 3216003, 3476760, 3675432, 4288004, 4594290, 5360005, 6125720, 6432006, 8576008, 9188580, 10720010, 12864012, 16080015, 18377160, 21440020, 25728024, 32160030, 42880040, 64320060, 128640120]

約数ペア:

[(1, 128640120), (2, 64320060), (3, 42880040), (4, 32160030), (5, 25728024), (6, 21440020), (7, 18377160), (8, 16080015), (10, 12864012), (12, 10720010), (14, 9188580), (15, 8576008), (20, 6432006), (21, 6125720), (24, 5360005), (28, 4594290), (30, 4288004), (35, 3675432), (37, 3476760), (40, 3216003), (42, 3062860), (56, 2297145), (60, 2144002), (70, 1837716), (74, 1738380), (84, 1531430), (105, 1225144), (111, 1158920), (120, 1072001), (140, 918858), (148, 869190), (168, 765715), (185, 695352), (210, 612572), (222, 579460), (259, 496680), (280, 459429), (296, 434595), (370, 347676), (420, 306286), (444, 289730), (518, 248340), (555, 231784), (740, 173838), (777, 165560), (840, 153143), (888, 144865), (1036, 124170), (1110, 115892), (1295, 99336), (1480, 86919), (1554, 82780), (2072, 62085), (2220, 57946), (2590, 49668), (3108, 41390), (3885, 33112), (4139, 31080), (4440, 28973), (5180, 24834), (6216, 20695), (7770, 16556), (8278, 15540), (10360, 12417)]