20170199720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{3607}}^1$

素因数の和:3879

約数の個数: 128

約数和(自身を含む): 50500454400

約数和(自身を除く): 30330254680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 179, 220, 284, 355, 358, 440, 568, 710, 716, 781, 895, 1420, 1432, 1562, 1790, 1969, 2840, 3124, 3580, 3607, 3905, 3938, 6248, 7160, 7214, 7810, 7876, 9845, 12709, 14428, 15620, 15752, 18035, 19690, 25418, 28856, 31240, 36070, 39380, 39677, 50836, 63545, 72140, 78760, 79354, 101672, 127090, 139799, 144280, 158708, 198385, 254180, 256097, 279598, 317416, 396770, 508360, 512194, 559196, 645653, 698995, 793540, 1024388, 1118392, 1280485, 1291306, 1397990, 1587080, 2048776, 2560970, 2582612, 2795980, 2817067, 3228265, 5121940, 5165224, 5591960, 5634134, 6456530, 7102183, 10243880, 11268268, 12913060, 14085335, 14204366, 22536536, 25826120, 28170670, 28408732, 35510915, 45841363, 56341340, 56817464, 71021830, 91682726, 112682680, 142043660, 183365452, 229206815, 284087320, 366730904, 458413630, 504254993, 916827260, 1008509986, 1833654520, 2017019972, 2521274965, 4034039944, 5042549930, 10085099860, 20170199720]

約数ペア:

[(1, 20170199720), (2, 10085099860), (4, 5042549930), (5, 4034039944), (8, 2521274965), (10, 2017019972), (11, 1833654520), (20, 1008509986), (22, 916827260), (40, 504254993), (44, 458413630), (55, 366730904), (71, 284087320), (88, 229206815), (110, 183365452), (142, 142043660), (179, 112682680), (220, 91682726), (284, 71021830), (355, 56817464), (358, 56341340), (440, 45841363), (568, 35510915), (710, 28408732), (716, 28170670), (781, 25826120), (895, 22536536), (1420, 14204366), (1432, 14085335), (1562, 12913060), (1790, 11268268), (1969, 10243880), (2840, 7102183), (3124, 6456530), (3580, 5634134), (3607, 5591960), (3905, 5165224), (3938, 5121940), (6248, 3228265), (7160, 2817067), (7214, 2795980), (7810, 2582612), (7876, 2560970), (9845, 2048776), (12709, 1587080), (14428, 1397990), (15620, 1291306), (15752, 1280485), (18035, 1118392), (19690, 1024388), (25418, 793540), (28856, 698995), (31240, 645653), (36070, 559196), (39380, 512194), (39677, 508360), (50836, 396770), (63545, 317416), (72140, 279598), (78760, 256097), (79354, 254180), (101672, 198385), (127090, 158708), (139799, 144280)]