51829520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20899}}^1$

素因数の和:20943

約数の個数: 40

約数和(自身を含む): 124396800

約数和(自身を除く): 72567280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 20899, 41798, 83596, 104495, 167192, 208990, 334384, 417980, 647869, 835960, 1295738, 1671920, 2591476, 3239345, 5182952, 6478690, 10365904, 12957380, 25914760, 51829520]

約数ペア:

[(1, 51829520), (2, 25914760), (4, 12957380), (5, 10365904), (8, 6478690), (10, 5182952), (16, 3239345), (20, 2591476), (31, 1671920), (40, 1295738), (62, 835960), (80, 647869), (124, 417980), (155, 334384), (248, 208990), (310, 167192), (496, 104495), (620, 83596), (1240, 41798), (2480, 20899)]