20656636

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:120

約数の個数: 108

約数和(自身を含む): 50519784

約数和(自身を除く): 29863148

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 67, 77, 91, 98, 121, 134, 143, 154, 182, 196, 242, 268, 286, 308, 364, 469, 484, 539, 572, 637, 737, 847, 871, 938, 1001, 1078, 1274, 1474, 1573, 1694, 1742, 1876, 2002, 2156, 2548, 2948, 3146, 3283, 3388, 3484, 4004, 5159, 5929, 6097, 6292, 6566, 7007, 8107, 9581, 10318, 11011, 11858, 12194, 13132, 14014, 16214, 19162, 20636, 22022, 23716, 24388, 28028, 32428, 36113, 38324, 42679, 44044, 56749, 67067, 72226, 77077, 85358, 105391, 113498, 134134, 144452, 154154, 170716, 210782, 226996, 268268, 308308, 397243, 421564, 469469, 737737, 794486, 938938, 1475474, 1588972, 1877876, 2950948, 5164159, 10328318, 20656636]

約数ペア:

[(1, 20656636), (2, 10328318), (4, 5164159), (7, 2950948), (11, 1877876), (13, 1588972), (14, 1475474), (22, 938938), (26, 794486), (28, 737737), (44, 469469), (49, 421564), (52, 397243), (67, 308308), (77, 268268), (91, 226996), (98, 210782), (121, 170716), (134, 154154), (143, 144452), (154, 134134), (182, 113498), (196, 105391), (242, 85358), (268, 77077), (286, 72226), (308, 67067), (364, 56749), (469, 44044), (484, 42679), (539, 38324), (572, 36113), (637, 32428), (737, 28028), (847, 24388), (871, 23716), (938, 22022), (1001, 20636), (1078, 19162), (1274, 16214), (1474, 14014), (1573, 13132), (1694, 12194), (1742, 11858), (1876, 11011), (2002, 10318), (2156, 9581), (2548, 8107), (2948, 7007), (3146, 6566), (3283, 6292), (3388, 6097), (3484, 5929), (4004, 5159)]