20121225272

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{21397}}^1$

素因数の和:21552

約数の個数: 64

約数和(自身を含む): 40118682240

約数和(自身を除く): 19997456968

約数列:

[1, 2, 4, 8, 41, 47, 61, 82, 94, 122, 164, 188, 244, 328, 376, 488, 1927, 2501, 2867, 3854, 5002, 5734, 7708, 10004, 11468, 15416, 20008, 21397, 22936, 42794, 85588, 117547, 171176, 235094, 470188, 877277, 940376, 1005659, 1305217, 1754554, 2011318, 2610434, 3509108, 4022636, 5220868, 7018216, 8045272, 10441736, 41232019, 53513897, 61345199, 82464038, 107027794, 122690398, 164928076, 214055588, 245380796, 329856152, 428111176, 490761592, 2515153159, 5030306318, 10060612636, 20121225272]

約数ペア:

[(1, 20121225272), (2, 10060612636), (4, 5030306318), (8, 2515153159), (41, 490761592), (47, 428111176), (61, 329856152), (82, 245380796), (94, 214055588), (122, 164928076), (164, 122690398), (188, 107027794), (244, 82464038), (328, 61345199), (376, 53513897), (488, 41232019), (1927, 10441736), (2501, 8045272), (2867, 7018216), (3854, 5220868), (5002, 4022636), (5734, 3509108), (7708, 2610434), (10004, 2011318), (11468, 1754554), (15416, 1305217), (20008, 1005659), (21397, 940376), (22936, 877277), (42794, 470188), (85588, 235094), (117547, 171176)]