87755780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{7043}}^1$

素因数の和:7148

約数の個数: 48

約数和(自身を含む): 213010560

約数和(自身を除く): 125254780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 7043, 12460, 14086, 28172, 35215, 49301, 70430, 98602, 140860, 197204, 246505, 493010, 626827, 986020, 1253654, 2507308, 3134135, 4387789, 6268270, 8775578, 12536540, 17551156, 21938945, 43877890, 87755780]

約数ペア:

[(1, 87755780), (2, 43877890), (4, 21938945), (5, 17551156), (7, 12536540), (10, 8775578), (14, 6268270), (20, 4387789), (28, 3134135), (35, 2507308), (70, 1253654), (89, 986020), (140, 626827), (178, 493010), (356, 246505), (445, 197204), (623, 140860), (890, 98602), (1246, 70430), (1780, 49301), (2492, 35215), (3115, 28172), (6230, 14086), (7043, 12460)]