138534040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{111721}}^1$

素因数の和:111763

約数の個数: 32

約数和(自身を含む): 321759360

約数和(自身を除く): 183225320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 111721, 223442, 446884, 558605, 893768, 1117210, 2234420, 3463351, 4468840, 6926702, 13853404, 17316755, 27706808, 34633510, 69267020, 138534040]

約数ペア:

[(1, 138534040), (2, 69267020), (4, 34633510), (5, 27706808), (8, 17316755), (10, 13853404), (20, 6926702), (31, 4468840), (40, 3463351), (62, 2234420), (124, 1117210), (155, 893768), (248, 558605), (310, 446884), (620, 223442), (1240, 111721)]