20173877880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{49171}}^1$

素因数の和:49461

約数の個数: 128

約数和(自身を含む): 65426296320

約数和(自身を除く): 45252418440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 263, 312, 390, 520, 526, 780, 789, 1052, 1315, 1560, 1578, 2104, 2630, 3156, 3419, 3945, 5260, 6312, 6838, 7890, 10257, 10520, 13676, 15780, 17095, 20514, 27352, 31560, 34190, 41028, 49171, 51285, 68380, 82056, 98342, 102570, 136760, 147513, 196684, 205140, 245855, 295026, 393368, 410280, 491710, 590052, 639223, 737565, 983420, 1180104, 1278446, 1475130, 1917669, 1966840, 2556892, 2950260, 3196115, 3835338, 5113784, 5900520, 6392230, 7670676, 9588345, 12784460, 12931973, 15341352, 19176690, 25568920, 25863946, 38353380, 38795919, 51727892, 64659865, 76706760, 77591838, 103455784, 129319730, 155183676, 168115649, 193979595, 258639460, 310367352, 336231298, 387959190, 504346947, 517278920, 672462596, 775918380, 840578245, 1008693894, 1344925192, 1551836760, 1681156490, 2017387788, 2521734735, 3362312980, 4034775576, 5043469470, 6724625960, 10086938940, 20173877880]

約数ペア:

[(1, 20173877880), (2, 10086938940), (3, 6724625960), (4, 5043469470), (5, 4034775576), (6, 3362312980), (8, 2521734735), (10, 2017387788), (12, 1681156490), (13, 1551836760), (15, 1344925192), (20, 1008693894), (24, 840578245), (26, 775918380), (30, 672462596), (39, 517278920), (40, 504346947), (52, 387959190), (60, 336231298), (65, 310367352), (78, 258639460), (104, 193979595), (120, 168115649), (130, 155183676), (156, 129319730), (195, 103455784), (260, 77591838), (263, 76706760), (312, 64659865), (390, 51727892), (520, 38795919), (526, 38353380), (780, 25863946), (789, 25568920), (1052, 19176690), (1315, 15341352), (1560, 12931973), (1578, 12784460), (2104, 9588345), (2630, 7670676), (3156, 6392230), (3419, 5900520), (3945, 5113784), (5260, 3835338), (6312, 3196115), (6838, 2950260), (7890, 2556892), (10257, 1966840), (10520, 1917669), (13676, 1475130), (15780, 1278446), (17095, 1180104), (20514, 983420), (27352, 737565), (31560, 639223), (34190, 590052), (41028, 491710), (49171, 410280), (51285, 393368), (68380, 295026), (82056, 245855), (98342, 205140), (102570, 196684), (136760, 147513)]