20916360

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:308

約数の個数: 128

約数和(自身を含む): 70761600

約数和(自身を除く): 49845240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 107, 108, 120, 135, 180, 181, 214, 216, 270, 321, 360, 362, 428, 535, 540, 543, 642, 724, 856, 905, 963, 1070, 1080, 1086, 1284, 1448, 1605, 1629, 1810, 1926, 2140, 2172, 2568, 2715, 2889, 3210, 3258, 3620, 3852, 4280, 4344, 4815, 4887, 5430, 5778, 6420, 6516, 7240, 7704, 8145, 9630, 9774, 10860, 11556, 12840, 13032, 14445, 16290, 19260, 19367, 19548, 21720, 23112, 24435, 28890, 32580, 38520, 38734, 39096, 48870, 57780, 58101, 65160, 77468, 96835, 97740, 115560, 116202, 154936, 174303, 193670, 195480, 232404, 290505, 348606, 387340, 464808, 522909, 581010, 697212, 774680, 871515, 1045818, 1162020, 1394424, 1743030, 2091636, 2324040, 2614545, 3486060, 4183272, 5229090, 6972120, 10458180, 20916360]

約数ペア:

[(1, 20916360), (2, 10458180), (3, 6972120), (4, 5229090), (5, 4183272), (6, 3486060), (8, 2614545), (9, 2324040), (10, 2091636), (12, 1743030), (15, 1394424), (18, 1162020), (20, 1045818), (24, 871515), (27, 774680), (30, 697212), (36, 581010), (40, 522909), (45, 464808), (54, 387340), (60, 348606), (72, 290505), (90, 232404), (107, 195480), (108, 193670), (120, 174303), (135, 154936), (180, 116202), (181, 115560), (214, 97740), (216, 96835), (270, 77468), (321, 65160), (360, 58101), (362, 57780), (428, 48870), (535, 39096), (540, 38734), (543, 38520), (642, 32580), (724, 28890), (856, 24435), (905, 23112), (963, 21720), (1070, 19548), (1080, 19367), (1086, 19260), (1284, 16290), (1448, 14445), (1605, 13032), (1629, 12840), (1810, 11556), (1926, 10860), (2140, 9774), (2172, 9630), (2568, 8145), (2715, 7704), (2889, 7240), (3210, 6516), (3258, 6420), (3620, 5778), (3852, 5430), (4280, 4887), (4344, 4815)]