19418740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1447}}^1$

素因数の和:1528

約数の個数: 48

約数和(自身を含む): 45247104

約数和(自身を除く): 25828364

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 1447, 2684, 2894, 3355, 5788, 6710, 7235, 13420, 14470, 15917, 28940, 31834, 63668, 79585, 88267, 159170, 176534, 318340, 353068, 441335, 882670, 970937, 1765340, 1941874, 3883748, 4854685, 9709370, 19418740]

約数ペア:

[(1, 19418740), (2, 9709370), (4, 4854685), (5, 3883748), (10, 1941874), (11, 1765340), (20, 970937), (22, 882670), (44, 441335), (55, 353068), (61, 318340), (110, 176534), (122, 159170), (220, 88267), (244, 79585), (305, 63668), (610, 31834), (671, 28940), (1220, 15917), (1342, 14470), (1447, 13420), (2684, 7235), (2894, 6710), (3355, 5788)]