81552320

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8221}}^1$

素因数の和:8269

約数の個数: 56

約数和(自身を含む): 200485248

約数和(自身を除く): 118932928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 8221, 9920, 16442, 32884, 41105, 65768, 82210, 131536, 164420, 254851, 263072, 328840, 509702, 526144, 657680, 1019404, 1274255, 1315360, 2038808, 2548510, 2630720, 4077616, 5097020, 8155232, 10194040, 16310464, 20388080, 40776160, 81552320]

約数ペア:

[(1, 81552320), (2, 40776160), (4, 20388080), (5, 16310464), (8, 10194040), (10, 8155232), (16, 5097020), (20, 4077616), (31, 2630720), (32, 2548510), (40, 2038808), (62, 1315360), (64, 1274255), (80, 1019404), (124, 657680), (155, 526144), (160, 509702), (248, 328840), (310, 263072), (320, 254851), (496, 164420), (620, 131536), (992, 82210), (1240, 65768), (1984, 41105), (2480, 32884), (4960, 16442), (8221, 9920)]