406989650

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{1409}}^1$

素因数の和:1583

約数の個数: 48

約数和(自身を含む): 778912200

約数和(自身を除く): 371922550

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 109, 218, 265, 530, 545, 1090, 1325, 1409, 2650, 2725, 2818, 5450, 5777, 7045, 11554, 14090, 28885, 35225, 57770, 70450, 74677, 144425, 149354, 153581, 288850, 307162, 373385, 746770, 767905, 1535810, 1866925, 3733850, 3839525, 7679050, 8139793, 16279586, 40698965, 81397930, 203494825, 406989650]

約数ペア:

[(1, 406989650), (2, 203494825), (5, 81397930), (10, 40698965), (25, 16279586), (50, 8139793), (53, 7679050), (106, 3839525), (109, 3733850), (218, 1866925), (265, 1535810), (530, 767905), (545, 746770), (1090, 373385), (1325, 307162), (1409, 288850), (2650, 153581), (2725, 149354), (2818, 144425), (5450, 74677), (5777, 70450), (7045, 57770), (11554, 35225), (14090, 28885)]