261285232

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{15901}}^1$

素因数の和:16001

約数の個数: 40

約数和(自身を含む): 552117440

約数和(自身を除く): 290832208

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 79, 104, 158, 208, 316, 632, 1027, 1264, 2054, 4108, 8216, 15901, 16432, 31802, 63604, 127208, 206713, 254416, 413426, 826852, 1256179, 1653704, 2512358, 3307408, 5024716, 10049432, 16330327, 20098864, 32660654, 65321308, 130642616, 261285232]

約数ペア:

[(1, 261285232), (2, 130642616), (4, 65321308), (8, 32660654), (13, 20098864), (16, 16330327), (26, 10049432), (52, 5024716), (79, 3307408), (104, 2512358), (158, 1653704), (208, 1256179), (316, 826852), (632, 413426), (1027, 254416), (1264, 206713), (2054, 127208), (4108, 63604), (8216, 31802), (15901, 16432)]