2538140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 5927040

約数和(自身を除く): 3388900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 110, 139, 166, 220, 278, 332, 415, 556, 695, 830, 913, 1390, 1529, 1660, 1826, 2780, 3058, 3652, 4565, 6116, 7645, 9130, 11537, 15290, 18260, 23074, 30580, 46148, 57685, 115370, 126907, 230740, 253814, 507628, 634535, 1269070, 2538140]

約数ペア:

[(1, 2538140), (2, 1269070), (4, 634535), (5, 507628), (10, 253814), (11, 230740), (20, 126907), (22, 115370), (44, 57685), (55, 46148), (83, 30580), (110, 23074), (139, 18260), (166, 15290), (220, 11537), (278, 9130), (332, 7645), (415, 6116), (556, 4565), (695, 3652), (830, 3058), (913, 2780), (1390, 1826), (1529, 1660)]