87771420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{457}}^1$

素因数の和:580

約数の個数: 144

約数和(自身を含む): 294079968

約数和(自身を除く): 206308548

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 97, 99, 110, 132, 165, 180, 194, 198, 220, 291, 330, 388, 396, 457, 485, 495, 582, 660, 873, 914, 970, 990, 1067, 1164, 1371, 1455, 1746, 1828, 1940, 1980, 2134, 2285, 2742, 2910, 3201, 3492, 4113, 4268, 4365, 4570, 5027, 5335, 5484, 5820, 6402, 6855, 8226, 8730, 9140, 9603, 10054, 10670, 12804, 13710, 15081, 16005, 16452, 17460, 19206, 20108, 20565, 21340, 25135, 27420, 30162, 32010, 38412, 41130, 44329, 45243, 48015, 50270, 60324, 64020, 75405, 82260, 88658, 90486, 96030, 100540, 132987, 150810, 177316, 180972, 192060, 221645, 226215, 265974, 301620, 398961, 443290, 452430, 487619, 531948, 664935, 797922, 886580, 904860, 975238, 1329870, 1462857, 1595844, 1950476, 1994805, 2438095, 2659740, 2925714, 3989610, 4388571, 4876190, 5851428, 7314285, 7979220, 8777142, 9752380, 14628570, 17554284, 21942855, 29257140, 43885710, 87771420]

約数ペア:

[(1, 87771420), (2, 43885710), (3, 29257140), (4, 21942855), (5, 17554284), (6, 14628570), (9, 9752380), (10, 8777142), (11, 7979220), (12, 7314285), (15, 5851428), (18, 4876190), (20, 4388571), (22, 3989610), (30, 2925714), (33, 2659740), (36, 2438095), (44, 1994805), (45, 1950476), (55, 1595844), (60, 1462857), (66, 1329870), (90, 975238), (97, 904860), (99, 886580), (110, 797922), (132, 664935), (165, 531948), (180, 487619), (194, 452430), (198, 443290), (220, 398961), (291, 301620), (330, 265974), (388, 226215), (396, 221645), (457, 192060), (485, 180972), (495, 177316), (582, 150810), (660, 132987), (873, 100540), (914, 96030), (970, 90486), (990, 88658), (1067, 82260), (1164, 75405), (1371, 64020), (1455, 60324), (1746, 50270), (1828, 48015), (1940, 45243), (1980, 44329), (2134, 41130), (2285, 38412), (2742, 32010), (2910, 30162), (3201, 27420), (3492, 25135), (4113, 21340), (4268, 20565), (4365, 20108), (4570, 19206), (5027, 17460), (5335, 16452), (5484, 16005), (5820, 15081), (6402, 13710), (6855, 12804), (8226, 10670), (8730, 10054), (9140, 9603)]