20871631664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{18301}}^1\times {\mathrm{5483}}^1$

素因数の和:23805

約数の個数: 40

約数和(自身を含む): 43559784912

約数和(自身を除く): 22688153248

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 5483, 10966, 18301, 21932, 36602, 43864, 71279, 73204, 87728, 142558, 146408, 237913, 285116, 292816, 475826, 570232, 951652, 1140464, 1903304, 3806608, 100344383, 200688766, 401377532, 802755064, 1304476979, 1605510128, 2608953958, 5217907916, 10435815832, 20871631664]

約数ペア:

[(1, 20871631664), (2, 10435815832), (4, 5217907916), (8, 2608953958), (13, 1605510128), (16, 1304476979), (26, 802755064), (52, 401377532), (104, 200688766), (208, 100344383), (5483, 3806608), (10966, 1903304), (18301, 1140464), (21932, 951652), (36602, 570232), (43864, 475826), (71279, 292816), (73204, 285116), (87728, 237913), (142558, 146408)]