8889688460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{262853}}^1$

素因数の和:262970

約数の個数: 48

約数和(自身を含む): 19871762400

約数和(自身を除く): 10982073940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 3382, 6764, 8455, 16910, 33820, 262853, 525706, 1051412, 1314265, 2628530, 4994207, 5257060, 9988414, 19976828, 23393917, 24971035, 46787834, 49942070, 93575668, 99884140, 116969585, 233939170, 444484423, 467878340, 888968846, 1777937692, 2222422115, 4444844230, 8889688460]

約数ペア:

[(1, 8889688460), (2, 4444844230), (4, 2222422115), (5, 1777937692), (10, 888968846), (19, 467878340), (20, 444484423), (38, 233939170), (76, 116969585), (89, 99884140), (95, 93575668), (178, 49942070), (190, 46787834), (356, 24971035), (380, 23393917), (445, 19976828), (890, 9988414), (1691, 5257060), (1780, 4994207), (3382, 2628530), (6764, 1314265), (8455, 1051412), (16910, 525706), (33820, 262853)]