19814439680

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{5179}}^1$

素因数の和:5275

約数の個数: 216

約数和(自身を含む): 56126563920

約数和(自身を除く): 36312124240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 61, 64, 70, 80, 98, 112, 122, 128, 140, 160, 196, 224, 244, 245, 256, 280, 305, 320, 392, 427, 448, 488, 490, 560, 610, 640, 784, 854, 896, 976, 980, 1120, 1220, 1280, 1568, 1708, 1792, 1952, 1960, 2135, 2240, 2440, 2989, 3136, 3416, 3904, 3920, 4270, 4480, 4880, 5179, 5978, 6272, 6832, 7808, 7840, 8540, 8960, 9760, 10358, 11956, 12544, 13664, 14945, 15616, 15680, 17080, 19520, 20716, 23912, 25895, 27328, 29890, 31360, 34160, 36253, 39040, 41432, 47824, 51790, 54656, 59780, 62720, 68320, 72506, 78080, 82864, 95648, 103580, 109312, 119560, 136640, 145012, 165728, 181265, 191296, 207160, 239120, 253771, 273280, 290024, 315919, 331456, 362530, 382592, 414320, 478240, 507542, 546560, 580048, 631838, 662912, 725060, 765184, 828640, 956480, 1015084, 1160096, 1263676, 1268855, 1325824, 1450120, 1579595, 1657280, 1912960, 2030168, 2211433, 2320192, 2527352, 2537710, 2900240, 3159190, 3314560, 3825920, 4060336, 4422866, 4640384, 5054704, 5075420, 5800480, 6318380, 6629120, 8120672, 8845732, 9280768, 10109408, 10150840, 11057165, 11600960, 12636760, 15480031, 16241344, 17691464, 20218816, 20301680, 22114330, 23201920, 25273520, 30960062, 32482688, 35382928, 40437632, 40603360, 44228660, 46403840, 50547040, 61920124, 64965376, 70765856, 77400155, 80875264, 81206720, 88457320, 101094080, 123840248, 141531712, 154800310, 162413440, 176914640, 202188160, 247680496, 283063424, 309600620, 324826880, 353829280, 404376320, 495360992, 566126848, 619201240, 707658560, 990721984, 1238402480, 1415317120, 1981443968, 2476804960, 2830634240, 3962887936, 4953609920, 9907219840, 19814439680]

約数ペア:

[(1, 19814439680), (2, 9907219840), (4, 4953609920), (5, 3962887936), (7, 2830634240), (8, 2476804960), (10, 1981443968), (14, 1415317120), (16, 1238402480), (20, 990721984), (28, 707658560), (32, 619201240), (35, 566126848), (40, 495360992), (49, 404376320), (56, 353829280), (61, 324826880), (64, 309600620), (70, 283063424), (80, 247680496), (98, 202188160), (112, 176914640), (122, 162413440), (128, 154800310), (140, 141531712), (160, 123840248), (196, 101094080), (224, 88457320), (244, 81206720), (245, 80875264), (256, 77400155), (280, 70765856), (305, 64965376), (320, 61920124), (392, 50547040), (427, 46403840), (448, 44228660), (488, 40603360), (490, 40437632), (560, 35382928), (610, 32482688), (640, 30960062), (784, 25273520), (854, 23201920), (896, 22114330), (976, 20301680), (980, 20218816), (1120, 17691464), (1220, 16241344), (1280, 15480031), (1568, 12636760), (1708, 11600960), (1792, 11057165), (1952, 10150840), (1960, 10109408), (2135, 9280768), (2240, 8845732), (2440, 8120672), (2989, 6629120), (3136, 6318380), (3416, 5800480), (3904, 5075420), (3920, 5054704), (4270, 4640384), (4480, 4422866), (4880, 4060336), (5179, 3825920), (5978, 3314560), (6272, 3159190), (6832, 2900240), (7808, 2537710), (7840, 2527352), (8540, 2320192), (8960, 2211433), (9760, 2030168), (10358, 1912960), (11956, 1657280), (12544, 1579595), (13664, 1450120), (14945, 1325824), (15616, 1268855), (15680, 1263676), (17080, 1160096), (19520, 1015084), (20716, 956480), (23912, 828640), (25895, 765184), (27328, 725060), (29890, 662912), (31360, 631838), (34160, 580048), (36253, 546560), (39040, 507542), (41432, 478240), (47824, 414320), (51790, 382592), (54656, 362530), (59780, 331456), (62720, 315919), (68320, 290024), (72506, 273280), (78080, 253771), (82864, 239120), (95648, 207160), (103580, 191296), (109312, 181265), (119560, 165728), (136640, 145012)]