1999086720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{22153}}^1$

素因数の和:22222

約数の個数: 128

約数和(自身を含む): 6507959040

約数和(自身を除く): 4508872320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 47, 48, 60, 64, 80, 94, 96, 120, 128, 141, 160, 188, 192, 235, 240, 282, 320, 376, 384, 470, 480, 564, 640, 705, 752, 940, 960, 1128, 1410, 1504, 1880, 1920, 2256, 2820, 3008, 3760, 4512, 5640, 6016, 7520, 9024, 11280, 15040, 18048, 22153, 22560, 30080, 44306, 45120, 66459, 88612, 90240, 110765, 132918, 177224, 221530, 265836, 332295, 354448, 443060, 531672, 664590, 708896, 886120, 1041191, 1063344, 1329180, 1417792, 1772240, 2082382, 2126688, 2658360, 2835584, 3123573, 3544480, 4164764, 4253376, 5205955, 5316720, 6247146, 7088960, 8329528, 8506752, 10411910, 10633440, 12494292, 14177920, 15617865, 16659056, 20823820, 21266880, 24988584, 31235730, 33318112, 41647640, 42533760, 49977168, 62471460, 66636224, 83295280, 99954336, 124942920, 133272448, 166590560, 199908672, 249885840, 333181120, 399817344, 499771680, 666362240, 999543360, 1999086720]

約数ペア:

[(1, 1999086720), (2, 999543360), (3, 666362240), (4, 499771680), (5, 399817344), (6, 333181120), (8, 249885840), (10, 199908672), (12, 166590560), (15, 133272448), (16, 124942920), (20, 99954336), (24, 83295280), (30, 66636224), (32, 62471460), (40, 49977168), (47, 42533760), (48, 41647640), (60, 33318112), (64, 31235730), (80, 24988584), (94, 21266880), (96, 20823820), (120, 16659056), (128, 15617865), (141, 14177920), (160, 12494292), (188, 10633440), (192, 10411910), (235, 8506752), (240, 8329528), (282, 7088960), (320, 6247146), (376, 5316720), (384, 5205955), (470, 4253376), (480, 4164764), (564, 3544480), (640, 3123573), (705, 2835584), (752, 2658360), (940, 2126688), (960, 2082382), (1128, 1772240), (1410, 1417792), (1504, 1329180), (1880, 1063344), (1920, 1041191), (2256, 886120), (2820, 708896), (3008, 664590), (3760, 531672), (4512, 443060), (5640, 354448), (6016, 332295), (7520, 265836), (9024, 221530), (11280, 177224), (15040, 132918), (18048, 110765), (22153, 90240), (22560, 88612), (30080, 66459), (44306, 45120)]