138188080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55721}}^1$

素因数の和:55765

約数の個数: 40

約数和(自身を含む): 331657344

約数和(自身を除く): 193469264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 55721, 111442, 222884, 278605, 445768, 557210, 891536, 1114420, 1727351, 2228840, 3454702, 4457680, 6909404, 8636755, 13818808, 17273510, 27637616, 34547020, 69094040, 138188080]

約数ペア:

[(1, 138188080), (2, 69094040), (4, 34547020), (5, 27637616), (8, 17273510), (10, 13818808), (16, 8636755), (20, 6909404), (31, 4457680), (40, 3454702), (62, 2228840), (80, 1727351), (124, 1114420), (155, 891536), (248, 557210), (310, 445768), (496, 278605), (620, 222884), (1240, 111442), (2480, 55721)]