149808520

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{9157}}^1$

素因数の和:9577

約数の個数: 32

約数和(自身を含む): 337930200

約数和(自身を除く): 188121680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 8180, 9157, 16360, 18314, 36628, 45785, 73256, 91570, 183140, 366280, 3745213, 7490426, 14980852, 18726065, 29961704, 37452130, 74904260, 149808520]

約数ペア:

[(1, 149808520), (2, 74904260), (4, 37452130), (5, 29961704), (8, 18726065), (10, 14980852), (20, 7490426), (40, 3745213), (409, 366280), (818, 183140), (1636, 91570), (2045, 73256), (3272, 45785), (4090, 36628), (8180, 18314), (9157, 16360)]