81919040

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{36571}}^1$

素因数の和:36595

約数の個数: 56

約数和(自身を含む): 222942912

約数和(自身を除く): 141023872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 36571, 73142, 146284, 182855, 255997, 292568, 365710, 511994, 585136, 731420, 1023988, 1170272, 1279985, 1462840, 2047976, 2340544, 2559970, 2925680, 4095952, 5119940, 5851360, 8191904, 10239880, 11702720, 16383808, 20479760, 40959520, 81919040]

約数ペア:

[(1, 81919040), (2, 40959520), (4, 20479760), (5, 16383808), (7, 11702720), (8, 10239880), (10, 8191904), (14, 5851360), (16, 5119940), (20, 4095952), (28, 2925680), (32, 2559970), (35, 2340544), (40, 2047976), (56, 1462840), (64, 1279985), (70, 1170272), (80, 1023988), (112, 731420), (140, 585136), (160, 511994), (224, 365710), (280, 292568), (320, 255997), (448, 182855), (560, 146284), (1120, 73142), (2240, 36571)]