647828636

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1993}}^1$

素因数の和:2083

約数の個数: 96

約数和(自身を含む): 1500764160

約数和(自身を除く): 852935524

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 47, 52, 76, 91, 94, 133, 182, 188, 247, 266, 329, 364, 494, 532, 611, 658, 893, 988, 1222, 1316, 1729, 1786, 1993, 2444, 3458, 3572, 3986, 4277, 6251, 6916, 7972, 8554, 11609, 12502, 13951, 17108, 23218, 25004, 25909, 27902, 37867, 46436, 51818, 55804, 75734, 81263, 93671, 103636, 151468, 162526, 181363, 187342, 265069, 325052, 362726, 374684, 492271, 530138, 655697, 725452, 984542, 1060276, 1217723, 1311394, 1779749, 1969084, 2435446, 2622788, 3445897, 3559498, 4870892, 6891794, 7118996, 8524061, 12458243, 13783588, 17048122, 23136737, 24916486, 34096244, 46273474, 49832972, 92546948, 161957159, 323914318, 647828636]

約数ペア:

[(1, 647828636), (2, 323914318), (4, 161957159), (7, 92546948), (13, 49832972), (14, 46273474), (19, 34096244), (26, 24916486), (28, 23136737), (38, 17048122), (47, 13783588), (52, 12458243), (76, 8524061), (91, 7118996), (94, 6891794), (133, 4870892), (182, 3559498), (188, 3445897), (247, 2622788), (266, 2435446), (329, 1969084), (364, 1779749), (494, 1311394), (532, 1217723), (611, 1060276), (658, 984542), (893, 725452), (988, 655697), (1222, 530138), (1316, 492271), (1729, 374684), (1786, 362726), (1993, 325052), (2444, 265069), (3458, 187342), (3572, 181363), (3986, 162526), (4277, 151468), (6251, 103636), (6916, 93671), (7972, 81263), (8554, 75734), (11609, 55804), (12502, 51818), (13951, 46436), (17108, 37867), (23218, 27902), (25004, 25909)]