3987220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 8870400

約数和(自身を除く): 4883180

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 109, 118, 124, 155, 218, 236, 295, 310, 436, 545, 590, 620, 1090, 1180, 1829, 2180, 3379, 3658, 6431, 6758, 7316, 9145, 12862, 13516, 16895, 18290, 25724, 32155, 33790, 36580, 64310, 67580, 128620, 199361, 398722, 797444, 996805, 1993610, 3987220]

約数ペア:

[(1, 3987220), (2, 1993610), (4, 996805), (5, 797444), (10, 398722), (20, 199361), (31, 128620), (59, 67580), (62, 64310), (109, 36580), (118, 33790), (124, 32155), (155, 25724), (218, 18290), (236, 16895), (295, 13516), (310, 12862), (436, 9145), (545, 7316), (590, 6758), (620, 6431), (1090, 3658), (1180, 3379), (1829, 2180)]