20296760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{283}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 50302080

約数和(自身を除く): 30005320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 163, 220, 283, 326, 440, 566, 652, 815, 1132, 1304, 1415, 1630, 1793, 2264, 2830, 3113, 3260, 3586, 5660, 6226, 6520, 7172, 8965, 11320, 12452, 14344, 15565, 17930, 24904, 31130, 35860, 46129, 62260, 71720, 92258, 124520, 184516, 230645, 369032, 461290, 507419, 922580, 1014838, 1845160, 2029676, 2537095, 4059352, 5074190, 10148380, 20296760]

約数ペア:

[(1, 20296760), (2, 10148380), (4, 5074190), (5, 4059352), (8, 2537095), (10, 2029676), (11, 1845160), (20, 1014838), (22, 922580), (40, 507419), (44, 461290), (55, 369032), (88, 230645), (110, 184516), (163, 124520), (220, 92258), (283, 71720), (326, 62260), (440, 46129), (566, 35860), (652, 31130), (815, 24904), (1132, 17930), (1304, 15565), (1415, 14344), (1630, 12452), (1793, 11320), (2264, 8965), (2830, 7172), (3113, 6520), (3260, 6226), (3586, 5660)]