20439510

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7487}}^1$

素因数の和:7517

約数の個数: 64

約数和(自身を含む): 60383232

約数和(自身を除く): 39943722

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7487, 14974, 22461, 37435, 44922, 52409, 74870, 97331, 104818, 112305, 157227, 194662, 224610, 262045, 291993, 314454, 486655, 524090, 583986, 681317, 786135, 973310, 1362634, 1459965, 1572270, 2043951, 2919930, 3406585, 4087902, 6813170, 10219755, 20439510]

約数ペア:

[(1, 20439510), (2, 10219755), (3, 6813170), (5, 4087902), (6, 3406585), (7, 2919930), (10, 2043951), (13, 1572270), (14, 1459965), (15, 1362634), (21, 973310), (26, 786135), (30, 681317), (35, 583986), (39, 524090), (42, 486655), (65, 314454), (70, 291993), (78, 262045), (91, 224610), (105, 194662), (130, 157227), (182, 112305), (195, 104818), (210, 97331), (273, 74870), (390, 52409), (455, 44922), (546, 37435), (910, 22461), (1365, 14974), (2730, 7487)]