78816100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{523}}^1$

素因数の和:685

約数の個数: 72

約数和(自身を含む): 188300448

約数和(自身を除く): 109484348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 137, 220, 274, 275, 523, 548, 550, 685, 1046, 1100, 1370, 1507, 2092, 2615, 2740, 3014, 3425, 5230, 5753, 6028, 6850, 7535, 10460, 11506, 13075, 13700, 15070, 23012, 26150, 28765, 30140, 37675, 52300, 57530, 71651, 75350, 115060, 143302, 143825, 150700, 286604, 287650, 358255, 575300, 716510, 788161, 1433020, 1576322, 1791275, 3152644, 3582550, 3940805, 7165100, 7881610, 15763220, 19704025, 39408050, 78816100]

約数ペア:

[(1, 78816100), (2, 39408050), (4, 19704025), (5, 15763220), (10, 7881610), (11, 7165100), (20, 3940805), (22, 3582550), (25, 3152644), (44, 1791275), (50, 1576322), (55, 1433020), (100, 788161), (110, 716510), (137, 575300), (220, 358255), (274, 287650), (275, 286604), (523, 150700), (548, 143825), (550, 143302), (685, 115060), (1046, 75350), (1100, 71651), (1370, 57530), (1507, 52300), (2092, 37675), (2615, 30140), (2740, 28765), (3014, 26150), (3425, 23012), (5230, 15070), (5753, 13700), (6028, 13075), (6850, 11506), (7535, 10460)]