78572880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1789}}^1$

素因数の和:1869

約数の個数: 120

約数和(自身を含む): 268349640

約数和(自身を除く): 189776760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 61, 72, 80, 90, 120, 122, 144, 180, 183, 240, 244, 305, 360, 366, 488, 549, 610, 720, 732, 915, 976, 1098, 1220, 1464, 1789, 1830, 2196, 2440, 2745, 2928, 3578, 3660, 4392, 4880, 5367, 5490, 7156, 7320, 8784, 8945, 10734, 10980, 14312, 14640, 16101, 17890, 21468, 21960, 26835, 28624, 32202, 35780, 42936, 43920, 53670, 64404, 71560, 80505, 85872, 107340, 109129, 128808, 143120, 161010, 214680, 218258, 257616, 322020, 327387, 429360, 436516, 545645, 644040, 654774, 873032, 982161, 1091290, 1288080, 1309548, 1636935, 1746064, 1964322, 2182580, 2619096, 3273870, 3928644, 4365160, 4910805, 5238192, 6547740, 7857288, 8730320, 9821610, 13095480, 15714576, 19643220, 26190960, 39286440, 78572880]

約数ペア:

[(1, 78572880), (2, 39286440), (3, 26190960), (4, 19643220), (5, 15714576), (6, 13095480), (8, 9821610), (9, 8730320), (10, 7857288), (12, 6547740), (15, 5238192), (16, 4910805), (18, 4365160), (20, 3928644), (24, 3273870), (30, 2619096), (36, 2182580), (40, 1964322), (45, 1746064), (48, 1636935), (60, 1309548), (61, 1288080), (72, 1091290), (80, 982161), (90, 873032), (120, 654774), (122, 644040), (144, 545645), (180, 436516), (183, 429360), (240, 327387), (244, 322020), (305, 257616), (360, 218258), (366, 214680), (488, 161010), (549, 143120), (610, 128808), (720, 109129), (732, 107340), (915, 85872), (976, 80505), (1098, 71560), (1220, 64404), (1464, 53670), (1789, 43920), (1830, 42936), (2196, 35780), (2440, 32202), (2745, 28624), (2928, 26835), (3578, 21960), (3660, 21468), (4392, 17890), (4880, 16101), (5367, 14640), (5490, 14312), (7156, 10980), (7320, 10734), (8784, 8945)]