289716100

素因数分解:

$2^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{11273}}^1$

素因数の和:11544

約数の個数: 36

約数和(自身を含む): 631186164

約数和(自身を除く): 341470064

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 257, 514, 1028, 1285, 2570, 5140, 6425, 11273, 12850, 22546, 25700, 45092, 56365, 112730, 225460, 281825, 563650, 1127300, 2897161, 5794322, 11588644, 14485805, 28971610, 57943220, 72429025, 144858050, 289716100]

約数ペア:

[(1, 289716100), (2, 144858050), (4, 72429025), (5, 57943220), (10, 28971610), (20, 14485805), (25, 11588644), (50, 5794322), (100, 2897161), (257, 1127300), (514, 563650), (1028, 281825), (1285, 225460), (2570, 112730), (5140, 56365), (6425, 45092), (11273, 25700), (12850, 22546)]