21612240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2309}}^1$

素因数の和:2341

約数の個数: 120

約数和(自身を含む): 78198120

約数和(自身を除く): 56585880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2309, 2340, 3120, 4618, 4680, 6927, 9236, 9360, 11545, 13854, 18472, 20781, 23090, 27708, 30017, 34635, 36944, 41562, 46180, 55416, 60034, 69270, 83124, 90051, 92360, 103905, 110832, 120068, 138540, 150085, 166248, 180102, 184720, 207810, 240136, 270153, 277080, 300170, 332496, 360204, 415620, 450255, 480272, 540306, 554160, 600340, 720408, 831240, 900510, 1080612, 1200680, 1350765, 1440816, 1662480, 1801020, 2161224, 2401360, 2701530, 3602040, 4322448, 5403060, 7204080, 10806120, 21612240]

約数ペア:

[(1, 21612240), (2, 10806120), (3, 7204080), (4, 5403060), (5, 4322448), (6, 3602040), (8, 2701530), (9, 2401360), (10, 2161224), (12, 1801020), (13, 1662480), (15, 1440816), (16, 1350765), (18, 1200680), (20, 1080612), (24, 900510), (26, 831240), (30, 720408), (36, 600340), (39, 554160), (40, 540306), (45, 480272), (48, 450255), (52, 415620), (60, 360204), (65, 332496), (72, 300170), (78, 277080), (80, 270153), (90, 240136), (104, 207810), (117, 184720), (120, 180102), (130, 166248), (144, 150085), (156, 138540), (180, 120068), (195, 110832), (208, 103905), (234, 92360), (240, 90051), (260, 83124), (312, 69270), (360, 60034), (390, 55416), (468, 46180), (520, 41562), (585, 36944), (624, 34635), (720, 30017), (780, 27708), (936, 23090), (1040, 20781), (1170, 18472), (1560, 13854), (1872, 11545), (2309, 9360), (2340, 9236), (3120, 6927), (4618, 4680)]