81773440

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{18253}}^1$

素因数の和:18279

約数の個数: 64

約数和(自身を含む): 223428960

約数和(自身を除く): 141655520

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, 18253, 36506, 73012, 91265, 127771, 146024, 182530, 255542, 292048, 365060, 511084, 584096, 638855, 730120, 1022168, 1168192, 1277710, 1460240, 2044336, 2336384, 2555420, 2920480, 4088672, 5110840, 5840960, 8177344, 10221680, 11681920, 16354688, 20443360, 40886720, 81773440]

約数ペア:

[(1, 81773440), (2, 40886720), (4, 20443360), (5, 16354688), (7, 11681920), (8, 10221680), (10, 8177344), (14, 5840960), (16, 5110840), (20, 4088672), (28, 2920480), (32, 2555420), (35, 2336384), (40, 2044336), (56, 1460240), (64, 1277710), (70, 1168192), (80, 1022168), (112, 730120), (128, 638855), (140, 584096), (160, 511084), (224, 365060), (280, 292048), (320, 255542), (448, 182530), (560, 146024), (640, 127771), (896, 91265), (1120, 73012), (2240, 36506), (4480, 18253)]