28143752

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{577}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 66030720

約数和(自身を除く): 37886968

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 67, 91, 104, 134, 182, 268, 364, 469, 536, 577, 728, 871, 938, 1154, 1742, 1876, 2308, 3484, 3752, 4039, 4616, 6097, 6968, 7501, 8078, 12194, 15002, 16156, 24388, 30004, 32312, 38659, 48776, 52507, 60008, 77318, 105014, 154636, 210028, 270613, 309272, 420056, 502567, 541226, 1005134, 1082452, 2010268, 2164904, 3517969, 4020536, 7035938, 14071876, 28143752]

約数ペア:

[(1, 28143752), (2, 14071876), (4, 7035938), (7, 4020536), (8, 3517969), (13, 2164904), (14, 2010268), (26, 1082452), (28, 1005134), (52, 541226), (56, 502567), (67, 420056), (91, 309272), (104, 270613), (134, 210028), (182, 154636), (268, 105014), (364, 77318), (469, 60008), (536, 52507), (577, 48776), (728, 38659), (871, 32312), (938, 30004), (1154, 24388), (1742, 16156), (1876, 15002), (2308, 12194), (3484, 8078), (3752, 7501), (4039, 6968), (4616, 6097)]