20178698870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{88321}}^1$

素因数の和:88437

約数の個数: 64

約数和(自身を含む): 41512753152

約数和(自身を除く): 21334054282

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 67, 110, 134, 155, 310, 335, 341, 670, 682, 737, 1474, 1705, 2077, 3410, 3685, 4154, 7370, 10385, 20770, 22847, 45694, 88321, 114235, 176642, 228470, 441605, 883210, 971531, 1943062, 2737951, 4857655, 5475902, 5917507, 9715310, 11835014, 13689755, 27379510, 29587535, 30117461, 59175070, 60234922, 65092577, 130185154, 150587305, 183442717, 301174610, 325462885, 366885434, 650925770, 917213585, 1834427170, 2017869887, 4035739774, 10089349435, 20178698870]

約数ペア:

[(1, 20178698870), (2, 10089349435), (5, 4035739774), (10, 2017869887), (11, 1834427170), (22, 917213585), (31, 650925770), (55, 366885434), (62, 325462885), (67, 301174610), (110, 183442717), (134, 150587305), (155, 130185154), (310, 65092577), (335, 60234922), (341, 59175070), (670, 30117461), (682, 29587535), (737, 27379510), (1474, 13689755), (1705, 11835014), (2077, 9715310), (3410, 5917507), (3685, 5475902), (4154, 4857655), (7370, 2737951), (10385, 1943062), (20770, 971531), (22847, 883210), (45694, 441605), (88321, 228470), (114235, 176642)]