78268100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 177879240

約数和(自身を除く): 99611140

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 137, 145, 197, 274, 290, 394, 548, 580, 685, 725, 788, 985, 1370, 1450, 1970, 2740, 2900, 3425, 3940, 3973, 4925, 5713, 6850, 7946, 9850, 11426, 13700, 15892, 19700, 19865, 22852, 26989, 28565, 39730, 53978, 57130, 79460, 99325, 107956, 114260, 134945, 142825, 198650, 269890, 285650, 397300, 539780, 571300, 674725, 782681, 1349450, 1565362, 2698900, 3130724, 3913405, 7826810, 15653620, 19567025, 39134050, 78268100]

約数ペア:

[(1, 78268100), (2, 39134050), (4, 19567025), (5, 15653620), (10, 7826810), (20, 3913405), (25, 3130724), (29, 2698900), (50, 1565362), (58, 1349450), (100, 782681), (116, 674725), (137, 571300), (145, 539780), (197, 397300), (274, 285650), (290, 269890), (394, 198650), (548, 142825), (580, 134945), (685, 114260), (725, 107956), (788, 99325), (985, 79460), (1370, 57130), (1450, 53978), (1970, 39730), (2740, 28565), (2900, 26989), (3425, 22852), (3940, 19865), (3973, 19700), (4925, 15892), (5713, 13700), (6850, 11426), (7946, 9850)]