20894848

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{433}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 46481400

約数和(自身を除く): 25586552

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 64, 104, 116, 128, 208, 232, 377, 416, 433, 464, 754, 832, 866, 928, 1508, 1664, 1732, 1856, 3016, 3464, 3712, 5629, 6032, 6928, 11258, 12064, 12557, 13856, 22516, 24128, 25114, 27712, 45032, 48256, 50228, 55424, 90064, 100456, 163241, 180128, 200912, 326482, 360256, 401824, 652964, 720512, 803648, 1305928, 1607296, 2611856, 5223712, 10447424, 20894848]

約数ペア:

[(1, 20894848), (2, 10447424), (4, 5223712), (8, 2611856), (13, 1607296), (16, 1305928), (26, 803648), (29, 720512), (32, 652964), (52, 401824), (58, 360256), (64, 326482), (104, 200912), (116, 180128), (128, 163241), (208, 100456), (232, 90064), (377, 55424), (416, 50228), (433, 48256), (464, 45032), (754, 27712), (832, 25114), (866, 24128), (928, 22516), (1508, 13856), (1664, 12557), (1732, 12064), (1856, 11258), (3016, 6928), (3464, 6032), (3712, 5629)]