51662720

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^1\times {\mathrm{907}}^1$

素因数の和:1015

約数の個数: 64

約数和(自身を含む): 125031600

約数和(自身を除く): 73368880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 320, 356, 445, 640, 712, 890, 907, 1424, 1780, 1814, 2848, 3560, 3628, 4535, 5696, 7120, 7256, 9070, 11392, 14240, 14512, 18140, 28480, 29024, 36280, 56960, 58048, 72560, 80723, 116096, 145120, 161446, 290240, 322892, 403615, 580480, 645784, 807230, 1291568, 1614460, 2583136, 3228920, 5166272, 6457840, 10332544, 12915680, 25831360, 51662720]

約数ペア:

[(1, 51662720), (2, 25831360), (4, 12915680), (5, 10332544), (8, 6457840), (10, 5166272), (16, 3228920), (20, 2583136), (32, 1614460), (40, 1291568), (64, 807230), (80, 645784), (89, 580480), (128, 403615), (160, 322892), (178, 290240), (320, 161446), (356, 145120), (445, 116096), (640, 80723), (712, 72560), (890, 58048), (907, 56960), (1424, 36280), (1780, 29024), (1814, 28480), (2848, 18140), (3560, 14512), (3628, 14240), (4535, 11392), (5696, 9070), (7120, 7256)]