202654780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1\times {\mathrm{443}}^1$

素因数の和:798

約数の個数: 48

約数和(自身を含む): 433006560

約数和(自身を除く): 230351780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 257, 356, 443, 445, 514, 886, 890, 1028, 1285, 1772, 1780, 2215, 2570, 4430, 5140, 8860, 22873, 39427, 45746, 78854, 91492, 113851, 114365, 157708, 197135, 227702, 228730, 394270, 455404, 457460, 569255, 788540, 1138510, 2277020, 10132739, 20265478, 40530956, 50663695, 101327390, 202654780]

約数ペア:

[(1, 202654780), (2, 101327390), (4, 50663695), (5, 40530956), (10, 20265478), (20, 10132739), (89, 2277020), (178, 1138510), (257, 788540), (356, 569255), (443, 457460), (445, 455404), (514, 394270), (886, 228730), (890, 227702), (1028, 197135), (1285, 157708), (1772, 114365), (1780, 113851), (2215, 91492), (2570, 78854), (4430, 45746), (5140, 39427), (8860, 22873)]