19862988800

素因数分解:

$2^{11}\times 5^2\times {\mathrm{139}}^1\times {\mathrm{2791}}^1$

素因数の和:2962

約数の個数: 144

約数和(自身を含む): 49620261600

約数和(自身を除く): 29757272800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 139, 160, 200, 256, 278, 320, 400, 512, 556, 640, 695, 800, 1024, 1112, 1280, 1390, 1600, 2048, 2224, 2560, 2780, 2791, 3200, 3475, 4448, 5120, 5560, 5582, 6400, 6950, 8896, 10240, 11120, 11164, 12800, 13900, 13955, 17792, 22240, 22328, 25600, 27800, 27910, 35584, 44480, 44656, 51200, 55600, 55820, 69775, 71168, 88960, 89312, 111200, 111640, 139550, 142336, 177920, 178624, 222400, 223280, 279100, 284672, 355840, 357248, 387949, 444800, 446560, 558200, 711680, 714496, 775898, 889600, 893120, 1116400, 1423360, 1428992, 1551796, 1779200, 1786240, 1939745, 2232800, 2857984, 3103592, 3558400, 3572480, 3879490, 4465600, 5715968, 6207184, 7116800, 7144960, 7758980, 8931200, 9698725, 12414368, 14289920, 15517960, 17862400, 19397450, 24828736, 28579840, 31035920, 35724800, 38794900, 49657472, 62071840, 71449600, 77589800, 99314944, 124143680, 142899200, 155179600, 198629888, 248287360, 310359200, 397259776, 496574720, 620718400, 794519552, 993149440, 1241436800, 1986298880, 2482873600, 3972597760, 4965747200, 9931494400, 19862988800]

約数ペア:

[(1, 19862988800), (2, 9931494400), (4, 4965747200), (5, 3972597760), (8, 2482873600), (10, 1986298880), (16, 1241436800), (20, 993149440), (25, 794519552), (32, 620718400), (40, 496574720), (50, 397259776), (64, 310359200), (80, 248287360), (100, 198629888), (128, 155179600), (139, 142899200), (160, 124143680), (200, 99314944), (256, 77589800), (278, 71449600), (320, 62071840), (400, 49657472), (512, 38794900), (556, 35724800), (640, 31035920), (695, 28579840), (800, 24828736), (1024, 19397450), (1112, 17862400), (1280, 15517960), (1390, 14289920), (1600, 12414368), (2048, 9698725), (2224, 8931200), (2560, 7758980), (2780, 7144960), (2791, 7116800), (3200, 6207184), (3475, 5715968), (4448, 4465600), (5120, 3879490), (5560, 3572480), (5582, 3558400), (6400, 3103592), (6950, 2857984), (8896, 2232800), (10240, 1939745), (11120, 1786240), (11164, 1779200), (12800, 1551796), (13900, 1428992), (13955, 1423360), (17792, 1116400), (22240, 893120), (22328, 889600), (25600, 775898), (27800, 714496), (27910, 711680), (35584, 558200), (44480, 446560), (44656, 444800), (51200, 387949), (55600, 357248), (55820, 355840), (69775, 284672), (71168, 279100), (88960, 223280), (89312, 222400), (111200, 178624), (111640, 177920), (139550, 142336)]