8721380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{389}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 19656000

約数和(自身を除く): 10934620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 76, 95, 118, 190, 236, 295, 380, 389, 590, 778, 1121, 1180, 1556, 1945, 2242, 3890, 4484, 5605, 7391, 7780, 11210, 14782, 22420, 22951, 29564, 36955, 45902, 73910, 91804, 114755, 147820, 229510, 436069, 459020, 872138, 1744276, 2180345, 4360690, 8721380]

約数ペア:

[(1, 8721380), (2, 4360690), (4, 2180345), (5, 1744276), (10, 872138), (19, 459020), (20, 436069), (38, 229510), (59, 147820), (76, 114755), (95, 91804), (118, 73910), (190, 45902), (236, 36955), (295, 29564), (380, 22951), (389, 22420), (590, 14782), (778, 11210), (1121, 7780), (1180, 7391), (1556, 5605), (1945, 4484), (2242, 3890)]