20653688

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 44651520

約数和(自身を除く): 23997832

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 67, 88, 113, 124, 134, 226, 248, 268, 341, 452, 536, 682, 737, 904, 1243, 1364, 1474, 2077, 2486, 2728, 2948, 3503, 4154, 4972, 5896, 7006, 7571, 8308, 9944, 14012, 15142, 16616, 22847, 28024, 30284, 38533, 45694, 60568, 77066, 83281, 91388, 154132, 166562, 182776, 234701, 308264, 333124, 469402, 666248, 938804, 1877608, 2581711, 5163422, 10326844, 20653688]

約数ペア:

[(1, 20653688), (2, 10326844), (4, 5163422), (8, 2581711), (11, 1877608), (22, 938804), (31, 666248), (44, 469402), (62, 333124), (67, 308264), (88, 234701), (113, 182776), (124, 166562), (134, 154132), (226, 91388), (248, 83281), (268, 77066), (341, 60568), (452, 45694), (536, 38533), (682, 30284), (737, 28024), (904, 22847), (1243, 16616), (1364, 15142), (1474, 14012), (2077, 9944), (2486, 8308), (2728, 7571), (2948, 7006), (3503, 5896), (4154, 4972)]