8942720

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 21756600

約数和(自身を除く): 12813880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 157, 160, 178, 314, 320, 356, 445, 628, 640, 712, 785, 890, 1256, 1424, 1570, 1780, 2512, 2848, 3140, 3560, 5024, 5696, 6280, 7120, 10048, 11392, 12560, 13973, 14240, 20096, 25120, 27946, 28480, 50240, 55892, 56960, 69865, 100480, 111784, 139730, 223568, 279460, 447136, 558920, 894272, 1117840, 1788544, 2235680, 4471360, 8942720]

約数ペア:

[(1, 8942720), (2, 4471360), (4, 2235680), (5, 1788544), (8, 1117840), (10, 894272), (16, 558920), (20, 447136), (32, 279460), (40, 223568), (64, 139730), (80, 111784), (89, 100480), (128, 69865), (157, 56960), (160, 55892), (178, 50240), (314, 28480), (320, 27946), (356, 25120), (445, 20096), (628, 14240), (640, 13973), (712, 12560), (785, 11392), (890, 10048), (1256, 7120), (1424, 6280), (1570, 5696), (1780, 5024), (2512, 3560), (2848, 3140)]