19948390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{3701}}^1$

素因数の和:3733

約数の個数: 48

約数和(自身を含む): 45579024

約数和(自身を除く): 25630634

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 3701, 5390, 7402, 18505, 25907, 37010, 40711, 51814, 81422, 129535, 181349, 203555, 259070, 284977, 362698, 407110, 569954, 906745, 1424885, 1813490, 1994839, 2849770, 3989678, 9974195, 19948390]

約数ペア:

[(1, 19948390), (2, 9974195), (5, 3989678), (7, 2849770), (10, 1994839), (11, 1813490), (14, 1424885), (22, 906745), (35, 569954), (49, 407110), (55, 362698), (70, 284977), (77, 259070), (98, 203555), (110, 181349), (154, 129535), (245, 81422), (385, 51814), (490, 40711), (539, 37010), (770, 25907), (1078, 18505), (2695, 7402), (3701, 5390)]