252820100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{443}}^1$

素因数の和:909

約数の個数: 72

約数和(自身を含む): 593503680

約数和(自身を除く): 340683580

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 439, 443, 650, 878, 886, 1300, 1756, 1772, 2195, 2215, 4390, 4430, 5707, 5759, 8780, 8860, 10975, 11075, 11414, 11518, 21950, 22150, 22828, 23036, 28535, 28795, 43900, 44300, 57070, 57590, 114140, 115180, 142675, 143975, 194477, 285350, 287950, 388954, 570700, 575900, 777908, 972385, 1944770, 2528201, 3889540, 4861925, 5056402, 9723850, 10112804, 12641005, 19447700, 25282010, 50564020, 63205025, 126410050, 252820100]

約数ペア:

[(1, 252820100), (2, 126410050), (4, 63205025), (5, 50564020), (10, 25282010), (13, 19447700), (20, 12641005), (25, 10112804), (26, 9723850), (50, 5056402), (52, 4861925), (65, 3889540), (100, 2528201), (130, 1944770), (260, 972385), (325, 777908), (439, 575900), (443, 570700), (650, 388954), (878, 287950), (886, 285350), (1300, 194477), (1756, 143975), (1772, 142675), (2195, 115180), (2215, 114140), (4390, 57590), (4430, 57070), (5707, 44300), (5759, 43900), (8780, 28795), (8860, 28535), (10975, 23036), (11075, 22828), (11414, 22150), (11518, 21950)]