1999388880

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11717}}^1$

素因数の和:11818

約数の個数: 160

約数和(自身を含む): 6974553600

約数和(自身を除く): 4975164720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 79, 80, 90, 108, 120, 135, 144, 158, 180, 216, 237, 240, 270, 316, 360, 395, 432, 474, 540, 632, 711, 720, 790, 948, 1080, 1185, 1264, 1422, 1580, 1896, 2133, 2160, 2370, 2844, 3160, 3555, 3792, 4266, 4740, 5688, 6320, 7110, 8532, 9480, 10665, 11376, 11717, 14220, 17064, 18960, 21330, 23434, 28440, 34128, 35151, 42660, 46868, 56880, 58585, 70302, 85320, 93736, 105453, 117170, 140604, 170640, 175755, 187472, 210906, 234340, 281208, 316359, 351510, 421812, 468680, 527265, 562416, 632718, 703020, 843624, 925643, 937360, 1054530, 1265436, 1406040, 1581795, 1687248, 1851286, 2109060, 2530872, 2776929, 2812080, 3163590, 3702572, 4218120, 4628215, 5061744, 5553858, 6327180, 7405144, 8330787, 8436240, 9256430, 11107716, 12654360, 13884645, 14810288, 16661574, 18512860, 22215432, 24992361, 25308720, 27769290, 33323148, 37025720, 41653935, 44430864, 49984722, 55538580, 66646296, 74051440, 83307870, 99969444, 111077160, 124961805, 133292592, 166615740, 199938888, 222154320, 249923610, 333231480, 399877776, 499847220, 666462960, 999694440, 1999388880]

約数ペア:

[(1, 1999388880), (2, 999694440), (3, 666462960), (4, 499847220), (5, 399877776), (6, 333231480), (8, 249923610), (9, 222154320), (10, 199938888), (12, 166615740), (15, 133292592), (16, 124961805), (18, 111077160), (20, 99969444), (24, 83307870), (27, 74051440), (30, 66646296), (36, 55538580), (40, 49984722), (45, 44430864), (48, 41653935), (54, 37025720), (60, 33323148), (72, 27769290), (79, 25308720), (80, 24992361), (90, 22215432), (108, 18512860), (120, 16661574), (135, 14810288), (144, 13884645), (158, 12654360), (180, 11107716), (216, 9256430), (237, 8436240), (240, 8330787), (270, 7405144), (316, 6327180), (360, 5553858), (395, 5061744), (432, 4628215), (474, 4218120), (540, 3702572), (632, 3163590), (711, 2812080), (720, 2776929), (790, 2530872), (948, 2109060), (1080, 1851286), (1185, 1687248), (1264, 1581795), (1422, 1406040), (1580, 1265436), (1896, 1054530), (2133, 937360), (2160, 925643), (2370, 843624), (2844, 703020), (3160, 632718), (3555, 562416), (3792, 527265), (4266, 468680), (4740, 421812), (5688, 351510), (6320, 316359), (7110, 281208), (8532, 234340), (9480, 210906), (10665, 187472), (11376, 175755), (11717, 170640), (14220, 140604), (17064, 117170), (18960, 105453), (21330, 93736), (23434, 85320), (28440, 70302), (34128, 58585), (35151, 56880), (42660, 46868)]