81296768

素因数分解:

$2^7\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2213}}^1$

素因数の和:2275

約数の個数: 64

約数和(自身を含む): 189695520

約数和(自身を除く): 108398752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 128, 164, 224, 287, 328, 448, 574, 656, 896, 1148, 1312, 2213, 2296, 2624, 4426, 4592, 5248, 8852, 9184, 15491, 17704, 18368, 30982, 35408, 36736, 61964, 70816, 90733, 123928, 141632, 181466, 247856, 283264, 362932, 495712, 635131, 725864, 991424, 1270262, 1451728, 1982848, 2540524, 2903456, 5081048, 5806912, 10162096, 11613824, 20324192, 40648384, 81296768]

約数ペア:

[(1, 81296768), (2, 40648384), (4, 20324192), (7, 11613824), (8, 10162096), (14, 5806912), (16, 5081048), (28, 2903456), (32, 2540524), (41, 1982848), (56, 1451728), (64, 1270262), (82, 991424), (112, 725864), (128, 635131), (164, 495712), (224, 362932), (287, 283264), (328, 247856), (448, 181466), (574, 141632), (656, 123928), (896, 90733), (1148, 70816), (1312, 61964), (2213, 36736), (2296, 35408), (2624, 30982), (4426, 18368), (4592, 17704), (5248, 15491), (8852, 9184)]