20527831916

素因数分解:

$2^2\times {\mathrm{37}}^2\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:547

約数の個数: 72

約数和(自身を含む): 37642878000

約数和(自身を除く): 17115046084

約数列:

[1, 2, 4, 37, 74, 139, 148, 149, 181, 278, 298, 362, 556, 596, 724, 1369, 2738, 5143, 5476, 5513, 6697, 10286, 11026, 13394, 20572, 20711, 22052, 25159, 26788, 26969, 41422, 50318, 53938, 82844, 100636, 107876, 190291, 203981, 247789, 380582, 407962, 495578, 761164, 766307, 815924, 930883, 991156, 997853, 1532614, 1861766, 1995706, 3065228, 3723532, 3748691, 3991412, 7497382, 14994764, 28353359, 34442671, 36920561, 56706718, 68885342, 73841122, 113413436, 137770684, 138701567, 147682244, 277403134, 554806268, 5131957979, 10263915958, 20527831916]

約数ペア:

[(1, 20527831916), (2, 10263915958), (4, 5131957979), (37, 554806268), (74, 277403134), (139, 147682244), (148, 138701567), (149, 137770684), (181, 113413436), (278, 73841122), (298, 68885342), (362, 56706718), (556, 36920561), (596, 34442671), (724, 28353359), (1369, 14994764), (2738, 7497382), (5143, 3991412), (5476, 3748691), (5513, 3723532), (6697, 3065228), (10286, 1995706), (11026, 1861766), (13394, 1532614), (20572, 997853), (20711, 991156), (22052, 930883), (25159, 815924), (26788, 766307), (26969, 761164), (41422, 495578), (50318, 407962), (53938, 380582), (82844, 247789), (100636, 203981), (107876, 190291)]