81321216

素因数分解:

$2^8\times 3^1\times {\mathrm{19}}^1\times {\mathrm{5573}}^1$

素因数の和:5611

約数の個数: 72

約数和(自身を含む): 227865120

約数和(自身を除く): 146543904

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 48, 57, 64, 76, 96, 114, 128, 152, 192, 228, 256, 304, 384, 456, 608, 768, 912, 1216, 1824, 2432, 3648, 4864, 5573, 7296, 11146, 14592, 16719, 22292, 33438, 44584, 66876, 89168, 105887, 133752, 178336, 211774, 267504, 317661, 356672, 423548, 535008, 635322, 713344, 847096, 1070016, 1270644, 1426688, 1694192, 2140032, 2541288, 3388384, 4280064, 5082576, 6776768, 10165152, 13553536, 20330304, 27107072, 40660608, 81321216]

約数ペア:

[(1, 81321216), (2, 40660608), (3, 27107072), (4, 20330304), (6, 13553536), (8, 10165152), (12, 6776768), (16, 5082576), (19, 4280064), (24, 3388384), (32, 2541288), (38, 2140032), (48, 1694192), (57, 1426688), (64, 1270644), (76, 1070016), (96, 847096), (114, 713344), (128, 635322), (152, 535008), (192, 423548), (228, 356672), (256, 317661), (304, 267504), (384, 211774), (456, 178336), (608, 133752), (768, 105887), (912, 89168), (1216, 66876), (1824, 44584), (2432, 33438), (3648, 22292), (4864, 16719), (5573, 14592), (7296, 11146)]