256464080

素因数分解:

$2^4\times 5^1\times {\mathrm{619}}^1\times {\mathrm{5179}}^1$

素因数の和:5811

約数の個数: 40

約数和(自身を含む): 597357600

約数和(自身を除く): 340893520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 619, 1238, 2476, 3095, 4952, 5179, 6190, 9904, 10358, 12380, 20716, 24760, 25895, 41432, 49520, 51790, 82864, 103580, 207160, 414320, 3205801, 6411602, 12823204, 16029005, 25646408, 32058010, 51292816, 64116020, 128232040, 256464080]

約数ペア:

[(1, 256464080), (2, 128232040), (4, 64116020), (5, 51292816), (8, 32058010), (10, 25646408), (16, 16029005), (20, 12823204), (40, 6411602), (80, 3205801), (619, 414320), (1238, 207160), (2476, 103580), (3095, 82864), (4952, 51790), (5179, 49520), (6190, 41432), (9904, 25895), (10358, 24760), (12380, 20716)]