28194760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{461}}^1$

素因数の和:622

約数の個数: 64

約数和(自身を含む): 69854400

約数和(自身を除く): 41659640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 139, 220, 278, 440, 461, 556, 695, 922, 1112, 1390, 1529, 1844, 2305, 2780, 3058, 3688, 4610, 5071, 5560, 6116, 7645, 9220, 10142, 12232, 15290, 18440, 20284, 25355, 30580, 40568, 50710, 61160, 64079, 101420, 128158, 202840, 256316, 320395, 512632, 640790, 704869, 1281580, 1409738, 2563160, 2819476, 3524345, 5638952, 7048690, 14097380, 28194760]

約数ペア:

[(1, 28194760), (2, 14097380), (4, 7048690), (5, 5638952), (8, 3524345), (10, 2819476), (11, 2563160), (20, 1409738), (22, 1281580), (40, 704869), (44, 640790), (55, 512632), (88, 320395), (110, 256316), (139, 202840), (220, 128158), (278, 101420), (440, 64079), (461, 61160), (556, 50710), (695, 40568), (922, 30580), (1112, 25355), (1390, 20284), (1529, 18440), (1844, 15290), (2305, 12232), (2780, 10142), (3058, 9220), (3688, 7645), (4610, 6116), (5071, 5560)]