81392360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9377}}^1$

素因数の和:9426

約数の個数: 64

約数和(自身を含む): 216069120

約数和(自身を除く): 134676760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 9377, 18754, 37508, 46885, 65639, 75016, 93770, 131278, 187540, 262556, 290687, 328195, 375080, 525112, 581374, 656390, 1162748, 1312780, 1453435, 2034809, 2325496, 2625560, 2906870, 4069618, 5813740, 8139236, 10174045, 11627480, 16278472, 20348090, 40696180, 81392360]

約数ペア:

[(1, 81392360), (2, 40696180), (4, 20348090), (5, 16278472), (7, 11627480), (8, 10174045), (10, 8139236), (14, 5813740), (20, 4069618), (28, 2906870), (31, 2625560), (35, 2325496), (40, 2034809), (56, 1453435), (62, 1312780), (70, 1162748), (124, 656390), (140, 581374), (155, 525112), (217, 375080), (248, 328195), (280, 290687), (310, 262556), (434, 187540), (620, 131278), (868, 93770), (1085, 75016), (1240, 65639), (1736, 46885), (2170, 37508), (4340, 18754), (8680, 9377)]