40781440

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{9103}}^1$

素因数の和:9129

約数の個数: 64

約数和(自身を含む): 111432960

約数和(自身を除く): 70651520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 9103, 18206, 36412, 45515, 63721, 72824, 91030, 127442, 145648, 182060, 254884, 291296, 318605, 364120, 509768, 582592, 637210, 728240, 1019536, 1165184, 1274420, 1456480, 2039072, 2548840, 2912960, 4078144, 5097680, 5825920, 8156288, 10195360, 20390720, 40781440]

約数ペア:

[(1, 40781440), (2, 20390720), (4, 10195360), (5, 8156288), (7, 5825920), (8, 5097680), (10, 4078144), (14, 2912960), (16, 2548840), (20, 2039072), (28, 1456480), (32, 1274420), (35, 1165184), (40, 1019536), (56, 728240), (64, 637210), (70, 582592), (80, 509768), (112, 364120), (128, 318605), (140, 291296), (160, 254884), (224, 182060), (280, 145648), (320, 127442), (448, 91030), (560, 72824), (640, 63721), (896, 45515), (1120, 36412), (2240, 18206), (4480, 9103)]