428260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:65

約数の個数: 72

約数和(自身を含む): 1149120

約数和(自身を除く): 720860

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 23, 28, 35, 38, 46, 49, 70, 76, 92, 95, 98, 115, 133, 140, 161, 190, 196, 230, 245, 266, 322, 380, 437, 460, 490, 532, 644, 665, 805, 874, 931, 980, 1127, 1330, 1610, 1748, 1862, 2185, 2254, 2660, 3059, 3220, 3724, 4370, 4508, 4655, 5635, 6118, 8740, 9310, 11270, 12236, 15295, 18620, 21413, 22540, 30590, 42826, 61180, 85652, 107065, 214130, 428260]

約数ペア:

[(1, 428260), (2, 214130), (4, 107065), (5, 85652), (7, 61180), (10, 42826), (14, 30590), (19, 22540), (20, 21413), (23, 18620), (28, 15295), (35, 12236), (38, 11270), (46, 9310), (49, 8740), (70, 6118), (76, 5635), (92, 4655), (95, 4508), (98, 4370), (115, 3724), (133, 3220), (140, 3059), (161, 2660), (190, 2254), (196, 2185), (230, 1862), (245, 1748), (266, 1610), (322, 1330), (380, 1127), (437, 980), (460, 931), (490, 874), (532, 805), (644, 665)]