21157140960

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{1381}}^1\times {\mathrm{10639}}^1$

素因数の和:12041

約数の個数: 144

約数和(自身を含む): 72257814720

約数和(自身を除く): 51100673760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1381, 1440, 2762, 4143, 5524, 6905, 8286, 10639, 11048, 12429, 13810, 16572, 20715, 21278, 22096, 24858, 27620, 31917, 33144, 41430, 42556, 44192, 49716, 53195, 55240, 62145, 63834, 66288, 82860, 85112, 95751, 99432, 106390, 110480, 124290, 127668, 132576, 159585, 165720, 170224, 191502, 198864, 212780, 220960, 248580, 255336, 319170, 331440, 340448, 383004, 397728, 425560, 478755, 497160, 510672, 638340, 662880, 766008, 851120, 957510, 994320, 1021344, 1276680, 1532016, 1702240, 1915020, 1988640, 2553360, 3064032, 3830040, 5106720, 7660080, 14692459, 15320160, 29384918, 44077377, 58769836, 73462295, 88154754, 117539672, 132232131, 146924590, 176309508, 220386885, 235079344, 264464262, 293849180, 352619016, 440773770, 470158688, 528928524, 587698360, 661160655, 705238032, 881547540, 1057857048, 1175396720, 1322321310, 1410476064, 1763095080, 2115714096, 2350793440, 2644642620, 3526190160, 4231428192, 5289285240, 7052380320, 10578570480, 21157140960]

約数ペア:

[(1, 21157140960), (2, 10578570480), (3, 7052380320), (4, 5289285240), (5, 4231428192), (6, 3526190160), (8, 2644642620), (9, 2350793440), (10, 2115714096), (12, 1763095080), (15, 1410476064), (16, 1322321310), (18, 1175396720), (20, 1057857048), (24, 881547540), (30, 705238032), (32, 661160655), (36, 587698360), (40, 528928524), (45, 470158688), (48, 440773770), (60, 352619016), (72, 293849180), (80, 264464262), (90, 235079344), (96, 220386885), (120, 176309508), (144, 146924590), (160, 132232131), (180, 117539672), (240, 88154754), (288, 73462295), (360, 58769836), (480, 44077377), (720, 29384918), (1381, 15320160), (1440, 14692459), (2762, 7660080), (4143, 5106720), (5524, 3830040), (6905, 3064032), (8286, 2553360), (10639, 1988640), (11048, 1915020), (12429, 1702240), (13810, 1532016), (16572, 1276680), (20715, 1021344), (21278, 994320), (22096, 957510), (24858, 851120), (27620, 766008), (31917, 662880), (33144, 638340), (41430, 510672), (42556, 497160), (44192, 478755), (49716, 425560), (53195, 397728), (55240, 383004), (62145, 340448), (63834, 331440), (66288, 319170), (82860, 255336), (85112, 248580), (95751, 220960), (99432, 212780), (106390, 198864), (110480, 191502), (124290, 170224), (127668, 165720), (132576, 159585)]