81274552

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 172627200

約数和(自身を除く): 91352648

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 71, 76, 136, 142, 152, 284, 323, 443, 568, 646, 886, 1207, 1292, 1349, 1772, 2414, 2584, 2698, 3544, 4828, 5396, 7531, 8417, 9656, 10792, 15062, 16834, 22933, 30124, 31453, 33668, 45866, 60248, 62906, 67336, 91732, 125812, 143089, 183464, 251624, 286178, 534701, 572356, 597607, 1069402, 1144712, 1195214, 2138804, 2390428, 4277608, 4780856, 10159319, 20318638, 40637276, 81274552]

約数ペア:

[(1, 81274552), (2, 40637276), (4, 20318638), (8, 10159319), (17, 4780856), (19, 4277608), (34, 2390428), (38, 2138804), (68, 1195214), (71, 1144712), (76, 1069402), (136, 597607), (142, 572356), (152, 534701), (284, 286178), (323, 251624), (443, 183464), (568, 143089), (646, 125812), (886, 91732), (1207, 67336), (1292, 62906), (1349, 60248), (1772, 45866), (2414, 33668), (2584, 31453), (2698, 30124), (3544, 22933), (4828, 16834), (5396, 15062), (7531, 10792), (8417, 9656)]