18455640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:321

約数の個数: 128

約数和(自身を含む): 64143360

約数和(自身を除く): 45687720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 127, 140, 168, 173, 210, 254, 280, 346, 381, 420, 508, 519, 635, 692, 762, 840, 865, 889, 1016, 1038, 1211, 1270, 1384, 1524, 1730, 1778, 1905, 2076, 2422, 2540, 2595, 2667, 3048, 3460, 3556, 3633, 3810, 4152, 4445, 4844, 5080, 5190, 5334, 6055, 6920, 7112, 7266, 7620, 8890, 9688, 10380, 10668, 12110, 13335, 14532, 15240, 17780, 18165, 20760, 21336, 21971, 24220, 26670, 29064, 35560, 36330, 43942, 48440, 53340, 65913, 72660, 87884, 106680, 109855, 131826, 145320, 153797, 175768, 219710, 263652, 307594, 329565, 439420, 461391, 527304, 615188, 659130, 768985, 878840, 922782, 1230376, 1318260, 1537970, 1845564, 2306955, 2636520, 3075940, 3691128, 4613910, 6151880, 9227820, 18455640]

約数ペア:

[(1, 18455640), (2, 9227820), (3, 6151880), (4, 4613910), (5, 3691128), (6, 3075940), (7, 2636520), (8, 2306955), (10, 1845564), (12, 1537970), (14, 1318260), (15, 1230376), (20, 922782), (21, 878840), (24, 768985), (28, 659130), (30, 615188), (35, 527304), (40, 461391), (42, 439420), (56, 329565), (60, 307594), (70, 263652), (84, 219710), (105, 175768), (120, 153797), (127, 145320), (140, 131826), (168, 109855), (173, 106680), (210, 87884), (254, 72660), (280, 65913), (346, 53340), (381, 48440), (420, 43942), (508, 36330), (519, 35560), (635, 29064), (692, 26670), (762, 24220), (840, 21971), (865, 21336), (889, 20760), (1016, 18165), (1038, 17780), (1211, 15240), (1270, 14532), (1384, 13335), (1524, 12110), (1730, 10668), (1778, 10380), (1905, 9688), (2076, 8890), (2422, 7620), (2540, 7266), (2595, 7112), (2667, 6920), (3048, 6055), (3460, 5334), (3556, 5190), (3633, 5080), (3810, 4844), (4152, 4445)]