249278320

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:482

約数の個数: 80

約数和(自身を含む): 592462080

約数和(自身を除く): 343183760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 157, 178, 223, 314, 356, 445, 446, 628, 712, 785, 890, 892, 1115, 1256, 1424, 1570, 1780, 1784, 2230, 2512, 3140, 3560, 3568, 4460, 6280, 7120, 8920, 12560, 13973, 17840, 19847, 27946, 35011, 39694, 55892, 69865, 70022, 79388, 99235, 111784, 139730, 140044, 158776, 175055, 198470, 223568, 279460, 280088, 317552, 350110, 396940, 558920, 560176, 700220, 793880, 1117840, 1400440, 1587760, 2800880, 3115979, 6231958, 12463916, 15579895, 24927832, 31159790, 49855664, 62319580, 124639160, 249278320]

約数ペア:

[(1, 249278320), (2, 124639160), (4, 62319580), (5, 49855664), (8, 31159790), (10, 24927832), (16, 15579895), (20, 12463916), (40, 6231958), (80, 3115979), (89, 2800880), (157, 1587760), (178, 1400440), (223, 1117840), (314, 793880), (356, 700220), (445, 560176), (446, 558920), (628, 396940), (712, 350110), (785, 317552), (890, 280088), (892, 279460), (1115, 223568), (1256, 198470), (1424, 175055), (1570, 158776), (1780, 140044), (1784, 139730), (2230, 111784), (2512, 99235), (3140, 79388), (3560, 70022), (3568, 69865), (4460, 55892), (6280, 39694), (7120, 35011), (8920, 27946), (12560, 19847), (13973, 17840)]