490977680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{361013}}^1$

素因数の和:361043

約数の個数: 40

約数和(自身を含む): 1208674872

約数和(自身を除く): 717697192

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 361013, 722026, 1444052, 1805065, 2888104, 3610130, 5776208, 6137221, 7220260, 12274442, 14440520, 24548884, 28881040, 30686105, 49097768, 61372210, 98195536, 122744420, 245488840, 490977680]

約数ペア:

[(1, 490977680), (2, 245488840), (4, 122744420), (5, 98195536), (8, 61372210), (10, 49097768), (16, 30686105), (17, 28881040), (20, 24548884), (34, 14440520), (40, 12274442), (68, 7220260), (80, 6137221), (85, 5776208), (136, 3610130), (170, 2888104), (272, 1805065), (340, 1444052), (680, 722026), (1360, 361013)]