20463850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1283}}^1$

素因数の和:1335

約数の個数: 48

約数和(自身を含む): 42988320

約数和(自身を除く): 22524470

約数列:

[1, 2, 5, 10, 11, 22, 25, 29, 50, 55, 58, 110, 145, 275, 290, 319, 550, 638, 725, 1283, 1450, 1595, 2566, 3190, 6415, 7975, 12830, 14113, 15950, 28226, 32075, 37207, 64150, 70565, 74414, 141130, 186035, 352825, 372070, 409277, 705650, 818554, 930175, 1860350, 2046385, 4092770, 10231925, 20463850]

約数ペア:

[(1, 20463850), (2, 10231925), (5, 4092770), (10, 2046385), (11, 1860350), (22, 930175), (25, 818554), (29, 705650), (50, 409277), (55, 372070), (58, 352825), (110, 186035), (145, 141130), (275, 74414), (290, 70565), (319, 64150), (550, 37207), (638, 32075), (725, 28226), (1283, 15950), (1450, 14113), (1595, 12830), (2566, 7975), (3190, 6415)]