207931490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 418279680

約数和(自身を除く): 210348190

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 139, 185, 278, 311, 370, 481, 622, 695, 962, 1390, 1555, 1807, 2405, 3110, 3614, 4043, 4810, 5143, 8086, 9035, 10286, 11507, 18070, 20215, 23014, 25715, 40430, 43229, 51430, 57535, 66859, 86458, 115070, 133718, 149591, 216145, 299182, 334295, 432290, 561977, 668590, 747955, 1123954, 1495910, 1599473, 2809885, 3198946, 5619770, 7997365, 15994730, 20793149, 41586298, 103965745, 207931490]

約数ペア:

[(1, 207931490), (2, 103965745), (5, 41586298), (10, 20793149), (13, 15994730), (26, 7997365), (37, 5619770), (65, 3198946), (74, 2809885), (130, 1599473), (139, 1495910), (185, 1123954), (278, 747955), (311, 668590), (370, 561977), (481, 432290), (622, 334295), (695, 299182), (962, 216145), (1390, 149591), (1555, 133718), (1807, 115070), (2405, 86458), (3110, 66859), (3614, 57535), (4043, 51430), (4810, 43229), (5143, 40430), (8086, 25715), (9035, 23014), (10286, 20215), (11507, 18070)]