19829620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 23715980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 179, 191, 290, 358, 382, 580, 716, 764, 895, 955, 1790, 1910, 3580, 3820, 5191, 5539, 10382, 11078, 20764, 22156, 25955, 27695, 34189, 51910, 55390, 68378, 103820, 110780, 136756, 170945, 341890, 683780, 991481, 1982962, 3965924, 4957405, 9914810, 19829620]

約数ペア:

[(1, 19829620), (2, 9914810), (4, 4957405), (5, 3965924), (10, 1982962), (20, 991481), (29, 683780), (58, 341890), (116, 170945), (145, 136756), (179, 110780), (191, 103820), (290, 68378), (358, 55390), (382, 51910), (580, 34189), (716, 27695), (764, 25955), (895, 22156), (955, 20764), (1790, 11078), (1910, 10382), (3580, 5539), (3820, 5191)]