81028460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{3557}}^1$

素因数の和:3650

約数の個数: 48

約数和(自身を含む): 182909664

約数和(自身を除く): 101881204

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 670, 1139, 1340, 2278, 3557, 4556, 5695, 7114, 11390, 14228, 17785, 22780, 35570, 60469, 71140, 120938, 238319, 241876, 302345, 476638, 604690, 953276, 1191595, 1209380, 2383190, 4051423, 4766380, 8102846, 16205692, 20257115, 40514230, 81028460]

約数ペア:

[(1, 81028460), (2, 40514230), (4, 20257115), (5, 16205692), (10, 8102846), (17, 4766380), (20, 4051423), (34, 2383190), (67, 1209380), (68, 1191595), (85, 953276), (134, 604690), (170, 476638), (268, 302345), (335, 241876), (340, 238319), (670, 120938), (1139, 71140), (1340, 60469), (2278, 35570), (3557, 22780), (4556, 17785), (5695, 14228), (7114, 11390)]