21120840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4513}}^1$

素因数の和:4543

約数の個数: 96

約数和(自身を含む): 73939320

約数和(自身を除く): 52818480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4513, 4680, 9026, 13539, 18052, 22565, 27078, 36104, 40617, 45130, 54156, 58669, 67695, 81234, 90260, 108312, 117338, 135390, 162468, 176007, 180520, 203085, 234676, 270780, 293345, 324936, 352014, 406170, 469352, 528021, 541560, 586690, 704028, 812340, 880035, 1056042, 1173380, 1408056, 1624680, 1760070, 2112084, 2346760, 2640105, 3520140, 4224168, 5280210, 7040280, 10560420, 21120840]

約数ペア:

[(1, 21120840), (2, 10560420), (3, 7040280), (4, 5280210), (5, 4224168), (6, 3520140), (8, 2640105), (9, 2346760), (10, 2112084), (12, 1760070), (13, 1624680), (15, 1408056), (18, 1173380), (20, 1056042), (24, 880035), (26, 812340), (30, 704028), (36, 586690), (39, 541560), (40, 528021), (45, 469352), (52, 406170), (60, 352014), (65, 324936), (72, 293345), (78, 270780), (90, 234676), (104, 203085), (117, 180520), (120, 176007), (130, 162468), (156, 135390), (180, 117338), (195, 108312), (234, 90260), (260, 81234), (312, 67695), (360, 58669), (390, 54156), (468, 45130), (520, 40617), (585, 36104), (780, 27078), (936, 22565), (1170, 18052), (1560, 13539), (2340, 9026), (4513, 4680)]