138040520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{111323}}^1$

素因数の和:111365

約数の個数: 32

約数和(自身を含む): 320613120

約数和(自身を除く): 182572600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 111323, 222646, 445292, 556615, 890584, 1113230, 2226460, 3451013, 4452920, 6902026, 13804052, 17255065, 27608104, 34510130, 69020260, 138040520]

約数ペア:

[(1, 138040520), (2, 69020260), (4, 34510130), (5, 27608104), (8, 17255065), (10, 13804052), (20, 6902026), (31, 4452920), (40, 3451013), (62, 2226460), (124, 1113230), (155, 890584), (248, 556615), (310, 445292), (620, 222646), (1240, 111323)]