20057120

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1871}}^1$

素因数の和:1953

約数の個数: 48

約数和(自身を含む): 48117888

約数和(自身を除く): 28060768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 1871, 2144, 2680, 3742, 5360, 7484, 9355, 10720, 14968, 18710, 29936, 37420, 59872, 74840, 125357, 149680, 250714, 299360, 501428, 626785, 1002856, 1253570, 2005712, 2507140, 4011424, 5014280, 10028560, 20057120]

約数ペア:

[(1, 20057120), (2, 10028560), (4, 5014280), (5, 4011424), (8, 2507140), (10, 2005712), (16, 1253570), (20, 1002856), (32, 626785), (40, 501428), (67, 299360), (80, 250714), (134, 149680), (160, 125357), (268, 74840), (335, 59872), (536, 37420), (670, 29936), (1072, 18710), (1340, 14968), (1871, 10720), (2144, 9355), (2680, 7484), (3742, 5360)]