72417680

素因数分解:

$2^4\times 5^1\times {\mathrm{719}}^1\times {\mathrm{1259}}^1$

素因数の和:1991

約数の個数: 40

約数和(自身を含む): 168739200

約数和(自身を除く): 96321520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 719, 1259, 1438, 2518, 2876, 3595, 5036, 5752, 6295, 7190, 10072, 11504, 12590, 14380, 20144, 25180, 28760, 50360, 57520, 100720, 905221, 1810442, 3620884, 4526105, 7241768, 9052210, 14483536, 18104420, 36208840, 72417680]

約数ペア:

[(1, 72417680), (2, 36208840), (4, 18104420), (5, 14483536), (8, 9052210), (10, 7241768), (16, 4526105), (20, 3620884), (40, 1810442), (80, 905221), (719, 100720), (1259, 57520), (1438, 50360), (2518, 28760), (2876, 25180), (3595, 20144), (5036, 14380), (5752, 12590), (6295, 11504), (7190, 10072)]