31365460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1427}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 75809664

約数和(自身を除く): 44444204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1427, 1570, 2198, 2854, 3140, 4396, 5495, 5708, 7135, 9989, 10990, 14270, 19978, 21980, 28540, 39956, 49945, 99890, 199780, 224039, 448078, 896156, 1120195, 1568273, 2240390, 3136546, 4480780, 6273092, 7841365, 15682730, 31365460]

約数ペア:

[(1, 31365460), (2, 15682730), (4, 7841365), (5, 6273092), (7, 4480780), (10, 3136546), (14, 2240390), (20, 1568273), (28, 1120195), (35, 896156), (70, 448078), (140, 224039), (157, 199780), (314, 99890), (628, 49945), (785, 39956), (1099, 28540), (1427, 21980), (1570, 19978), (2198, 14270), (2854, 10990), (3140, 9989), (4396, 7135), (5495, 5708)]