13921480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 32947200

約数和(自身を除く): 19025720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 103, 109, 124, 155, 206, 218, 248, 310, 412, 436, 515, 545, 620, 824, 872, 1030, 1090, 1240, 2060, 2180, 3193, 3379, 4120, 4360, 6386, 6758, 11227, 12772, 13516, 15965, 16895, 22454, 25544, 27032, 31930, 33790, 44908, 56135, 63860, 67580, 89816, 112270, 127720, 135160, 224540, 348037, 449080, 696074, 1392148, 1740185, 2784296, 3480370, 6960740, 13921480]

約数ペア:

[(1, 13921480), (2, 6960740), (4, 3480370), (5, 2784296), (8, 1740185), (10, 1392148), (20, 696074), (31, 449080), (40, 348037), (62, 224540), (103, 135160), (109, 127720), (124, 112270), (155, 89816), (206, 67580), (218, 63860), (248, 56135), (310, 44908), (412, 33790), (436, 31930), (515, 27032), (545, 25544), (620, 22454), (824, 16895), (872, 15965), (1030, 13516), (1090, 12772), (1240, 11227), (2060, 6758), (2180, 6386), (3193, 4360), (3379, 4120)]