20587600

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{4679}}^1$

素因数の和:4708

約数の個数: 60

約数和(自身を含む): 53969760

約数和(自身を除く): 33382160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 176, 200, 220, 275, 400, 440, 550, 880, 1100, 2200, 4400, 4679, 9358, 18716, 23395, 37432, 46790, 51469, 74864, 93580, 102938, 116975, 187160, 205876, 233950, 257345, 374320, 411752, 467900, 514690, 823504, 935800, 1029380, 1286725, 1871600, 2058760, 2573450, 4117520, 5146900, 10293800, 20587600]

約数ペア:

[(1, 20587600), (2, 10293800), (4, 5146900), (5, 4117520), (8, 2573450), (10, 2058760), (11, 1871600), (16, 1286725), (20, 1029380), (22, 935800), (25, 823504), (40, 514690), (44, 467900), (50, 411752), (55, 374320), (80, 257345), (88, 233950), (100, 205876), (110, 187160), (176, 116975), (200, 102938), (220, 93580), (275, 74864), (400, 51469), (440, 46790), (550, 37432), (880, 23395), (1100, 18716), (2200, 9358), (4400, 4679)]