81891250

素因数分解:

$2^1\times 5^4\times 7^3\times {\mathrm{191}}^1$

素因数の和:234

約数の個数: 80

約数和(自身を含む): 179942400

約数和(自身を除く): 98051150

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 125, 175, 191, 245, 250, 343, 350, 382, 490, 625, 686, 875, 955, 1225, 1250, 1337, 1715, 1750, 1910, 2450, 2674, 3430, 4375, 4775, 6125, 6685, 8575, 8750, 9359, 9550, 12250, 13370, 17150, 18718, 23875, 30625, 33425, 42875, 46795, 47750, 61250, 65513, 66850, 85750, 93590, 119375, 131026, 167125, 214375, 233975, 238750, 327565, 334250, 428750, 467950, 655130, 835625, 1169875, 1637825, 1671250, 2339750, 3275650, 5849375, 8189125, 11698750, 16378250, 40945625, 81891250]

約数ペア:

[(1, 81891250), (2, 40945625), (5, 16378250), (7, 11698750), (10, 8189125), (14, 5849375), (25, 3275650), (35, 2339750), (49, 1671250), (50, 1637825), (70, 1169875), (98, 835625), (125, 655130), (175, 467950), (191, 428750), (245, 334250), (250, 327565), (343, 238750), (350, 233975), (382, 214375), (490, 167125), (625, 131026), (686, 119375), (875, 93590), (955, 85750), (1225, 66850), (1250, 65513), (1337, 61250), (1715, 47750), (1750, 46795), (1910, 42875), (2450, 33425), (2674, 30625), (3430, 23875), (4375, 18718), (4775, 17150), (6125, 13370), (6685, 12250), (8575, 9550), (8750, 9359)]