128788100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{733}}^1$

素因数の和:1005

約数の個数: 72

約数和(自身を含む): 321104448

約数和(自身を除く): 192316348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 251, 350, 502, 700, 733, 1004, 1255, 1466, 1757, 2510, 2932, 3514, 3665, 5020, 5131, 6275, 7028, 7330, 8785, 10262, 12550, 14660, 17570, 18325, 20524, 25100, 25655, 35140, 36650, 43925, 51310, 73300, 87850, 102620, 128275, 175700, 183983, 256550, 367966, 513100, 735932, 919915, 1287881, 1839830, 2575762, 3679660, 4599575, 5151524, 6439405, 9199150, 12878810, 18398300, 25757620, 32197025, 64394050, 128788100]

約数ペア:

[(1, 128788100), (2, 64394050), (4, 32197025), (5, 25757620), (7, 18398300), (10, 12878810), (14, 9199150), (20, 6439405), (25, 5151524), (28, 4599575), (35, 3679660), (50, 2575762), (70, 1839830), (100, 1287881), (140, 919915), (175, 735932), (251, 513100), (350, 367966), (502, 256550), (700, 183983), (733, 175700), (1004, 128275), (1255, 102620), (1466, 87850), (1757, 73300), (2510, 51310), (2932, 43925), (3514, 36650), (3665, 35140), (5020, 25655), (5131, 25100), (6275, 20524), (7028, 18325), (7330, 17570), (8785, 14660), (10262, 12550)]