28145820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6607}}^1$

素因数の和:6690

約数の個数: 48

約数和(自身を含む): 79930368

約数和(自身を除く): 51784548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 6607, 13214, 19821, 26428, 33035, 39642, 66070, 79284, 99105, 132140, 198210, 396420, 469097, 938194, 1407291, 1876388, 2345485, 2814582, 4690970, 5629164, 7036455, 9381940, 14072910, 28145820]

約数ペア:

[(1, 28145820), (2, 14072910), (3, 9381940), (4, 7036455), (5, 5629164), (6, 4690970), (10, 2814582), (12, 2345485), (15, 1876388), (20, 1407291), (30, 938194), (60, 469097), (71, 396420), (142, 198210), (213, 132140), (284, 99105), (355, 79284), (426, 66070), (710, 39642), (852, 33035), (1065, 26428), (1420, 19821), (2130, 13214), (4260, 6607)]