289320520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{233323}}^1$

素因数の和:233365

約数の個数: 32

約数和(自身を含む): 671973120

約数和(自身を除く): 382652600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 233323, 466646, 933292, 1166615, 1866584, 2333230, 4666460, 7233013, 9332920, 14466026, 28932052, 36165065, 57864104, 72330130, 144660260, 289320520]

約数ペア:

[(1, 289320520), (2, 144660260), (4, 72330130), (5, 57864104), (8, 36165065), (10, 28932052), (20, 14466026), (31, 9332920), (40, 7233013), (62, 4666460), (124, 2333230), (155, 1866584), (248, 1166615), (310, 933292), (620, 466646), (1240, 233323)]