640051566325

素因数分解:

$5^2\times {\mathrm{1621}}^1\times {\mathrm{3203}}^1\times {\mathrm{4931}}^1$

素因数の和:9765

約数の個数: 24

約数和(自身を含む): 794562600096

約数和(自身を除く): 154511033771

約数列:

[1, 5, 25, 1621, 3203, 4931, 8105, 16015, 24655, 40525, 80075, 123275, 5192063, 7993151, 15793993, 25960315, 39965755, 78969965, 129801575, 199828775, 394849825, 25602062653, 128010313265, 640051566325]

約数ペア:

[(1, 640051566325), (5, 128010313265), (25, 25602062653), (1621, 394849825), (3203, 199828775), (4931, 129801575), (8105, 78969965), (16015, 39965755), (24655, 25960315), (40525, 15793993), (80075, 7993151), (123275, 5192063)]