81100744

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 168428160

約数和(自身を除く): 87327416

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 71, 74, 136, 142, 148, 227, 284, 296, 454, 568, 629, 908, 1207, 1258, 1816, 2414, 2516, 2627, 3859, 4828, 5032, 5254, 7718, 8399, 9656, 10508, 15436, 16117, 16798, 21016, 30872, 32234, 33596, 44659, 64468, 67192, 89318, 128936, 142783, 178636, 273989, 285566, 357272, 547978, 571132, 596329, 1095956, 1142264, 1192658, 2191912, 2385316, 4770632, 10137593, 20275186, 40550372, 81100744]

約数ペア:

[(1, 81100744), (2, 40550372), (4, 20275186), (8, 10137593), (17, 4770632), (34, 2385316), (37, 2191912), (68, 1192658), (71, 1142264), (74, 1095956), (136, 596329), (142, 571132), (148, 547978), (227, 357272), (284, 285566), (296, 273989), (454, 178636), (568, 142783), (629, 128936), (908, 89318), (1207, 67192), (1258, 64468), (1816, 44659), (2414, 33596), (2516, 32234), (2627, 30872), (3859, 21016), (4828, 16798), (5032, 16117), (5254, 15436), (7718, 10508), (8399, 9656)]