71488360

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{467}}^1$

素因数の和:610

約数の個数: 64

約数和(自身を含む): 166795200

約数和(自身を除く): 95306840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 89, 172, 178, 215, 344, 356, 430, 445, 467, 712, 860, 890, 934, 1720, 1780, 1868, 2335, 3560, 3736, 3827, 4670, 7654, 9340, 15308, 18680, 19135, 20081, 30616, 38270, 40162, 41563, 76540, 80324, 83126, 100405, 153080, 160648, 166252, 200810, 207815, 332504, 401620, 415630, 803240, 831260, 1662520, 1787209, 3574418, 7148836, 8936045, 14297672, 17872090, 35744180, 71488360]

約数ペア:

[(1, 71488360), (2, 35744180), (4, 17872090), (5, 14297672), (8, 8936045), (10, 7148836), (20, 3574418), (40, 1787209), (43, 1662520), (86, 831260), (89, 803240), (172, 415630), (178, 401620), (215, 332504), (344, 207815), (356, 200810), (430, 166252), (445, 160648), (467, 153080), (712, 100405), (860, 83126), (890, 80324), (934, 76540), (1720, 41563), (1780, 40162), (1868, 38270), (2335, 30616), (3560, 20081), (3736, 19135), (3827, 18680), (4670, 15308), (7654, 9340)]