19621800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{991}}^1$

素因数の和:1024

約数の個数: 144

約数和(自身を含む): 71959680

約数和(自身を除く): 52337880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 25, 30, 33, 36, 40, 44, 45, 50, 55, 60, 66, 72, 75, 88, 90, 99, 100, 110, 120, 132, 150, 165, 180, 198, 200, 220, 225, 264, 275, 300, 330, 360, 396, 440, 450, 495, 550, 600, 660, 792, 825, 900, 990, 991, 1100, 1320, 1650, 1800, 1980, 1982, 2200, 2475, 2973, 3300, 3960, 3964, 4950, 4955, 5946, 6600, 7928, 8919, 9900, 9910, 10901, 11892, 14865, 17838, 19800, 19820, 21802, 23784, 24775, 29730, 32703, 35676, 39640, 43604, 44595, 49550, 54505, 59460, 65406, 71352, 74325, 87208, 89190, 98109, 99100, 109010, 118920, 130812, 148650, 163515, 178380, 196218, 198200, 218020, 222975, 261624, 272525, 297300, 327030, 356760, 392436, 436040, 445950, 490545, 545050, 594600, 654060, 784872, 817575, 891900, 981090, 1090100, 1308120, 1635150, 1783800, 1962180, 2180200, 2452725, 3270300, 3924360, 4905450, 6540600, 9810900, 19621800]

約数ペア:

[(1, 19621800), (2, 9810900), (3, 6540600), (4, 4905450), (5, 3924360), (6, 3270300), (8, 2452725), (9, 2180200), (10, 1962180), (11, 1783800), (12, 1635150), (15, 1308120), (18, 1090100), (20, 981090), (22, 891900), (24, 817575), (25, 784872), (30, 654060), (33, 594600), (36, 545050), (40, 490545), (44, 445950), (45, 436040), (50, 392436), (55, 356760), (60, 327030), (66, 297300), (72, 272525), (75, 261624), (88, 222975), (90, 218020), (99, 198200), (100, 196218), (110, 178380), (120, 163515), (132, 148650), (150, 130812), (165, 118920), (180, 109010), (198, 99100), (200, 98109), (220, 89190), (225, 87208), (264, 74325), (275, 71352), (300, 65406), (330, 59460), (360, 54505), (396, 49550), (440, 44595), (450, 43604), (495, 39640), (550, 35676), (600, 32703), (660, 29730), (792, 24775), (825, 23784), (900, 21802), (990, 19820), (991, 19800), (1100, 17838), (1320, 14865), (1650, 11892), (1800, 10901), (1980, 9910), (1982, 9900), (2200, 8919), (2475, 7928), (2973, 6600), (3300, 5946), (3960, 4955), (3964, 4950)]