78511720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{977}}^1$

素因数の和:1043

約数の個数: 96

約数和(自身を含む): 210719880

約数和(自身を除く): 132208160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 49, 56, 70, 82, 98, 140, 164, 196, 205, 245, 280, 287, 328, 392, 410, 490, 574, 820, 977, 980, 1148, 1435, 1640, 1954, 1960, 2009, 2296, 2870, 3908, 4018, 4885, 5740, 6839, 7816, 8036, 9770, 10045, 11480, 13678, 16072, 19540, 20090, 27356, 34195, 39080, 40057, 40180, 47873, 54712, 68390, 80114, 80360, 95746, 136780, 160228, 191492, 200285, 239365, 273560, 280399, 320456, 382984, 400570, 478730, 560798, 801140, 957460, 1121596, 1401995, 1602280, 1914920, 1962793, 2243192, 2803990, 3925586, 5607980, 7851172, 9813965, 11215960, 15702344, 19627930, 39255860, 78511720]

約数ペア:

[(1, 78511720), (2, 39255860), (4, 19627930), (5, 15702344), (7, 11215960), (8, 9813965), (10, 7851172), (14, 5607980), (20, 3925586), (28, 2803990), (35, 2243192), (40, 1962793), (41, 1914920), (49, 1602280), (56, 1401995), (70, 1121596), (82, 957460), (98, 801140), (140, 560798), (164, 478730), (196, 400570), (205, 382984), (245, 320456), (280, 280399), (287, 273560), (328, 239365), (392, 200285), (410, 191492), (490, 160228), (574, 136780), (820, 95746), (977, 80360), (980, 80114), (1148, 68390), (1435, 54712), (1640, 47873), (1954, 40180), (1960, 40057), (2009, 39080), (2296, 34195), (2870, 27356), (3908, 20090), (4018, 19540), (4885, 16072), (5740, 13678), (6839, 11480), (7816, 10045), (8036, 9770)]