209981104

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{1279}}^1$

素因数の和:1649

約数の個数: 40

約数和(自身を含む): 421560320

約数和(自身を除く): 211579216

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 331, 496, 662, 1279, 1324, 2558, 2648, 5116, 5296, 10232, 10261, 20464, 20522, 39649, 41044, 79298, 82088, 158596, 164176, 317192, 423349, 634384, 846698, 1693396, 3386792, 6773584, 13123819, 26247638, 52495276, 104990552, 209981104]

約数ペア:

[(1, 209981104), (2, 104990552), (4, 52495276), (8, 26247638), (16, 13123819), (31, 6773584), (62, 3386792), (124, 1693396), (248, 846698), (331, 634384), (496, 423349), (662, 317192), (1279, 164176), (1324, 158596), (2558, 82088), (2648, 79298), (5116, 41044), (5296, 39649), (10232, 20522), (10261, 20464)]