2169821440

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{367}}^1$

素因数の和:568

約数の個数: 144

約数和(自身を含む): 5415782400

約数和(自身を除く): 3245960960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 149, 155, 160, 248, 256, 298, 310, 320, 367, 496, 596, 620, 640, 734, 745, 992, 1192, 1240, 1280, 1468, 1490, 1835, 1984, 2384, 2480, 2936, 2980, 3670, 3968, 4619, 4768, 4960, 5872, 5960, 7340, 7936, 9238, 9536, 9920, 11377, 11744, 11920, 14680, 18476, 19072, 19840, 22754, 23095, 23488, 23840, 29360, 36952, 38144, 39680, 45508, 46190, 46976, 47680, 54683, 56885, 58720, 73904, 91016, 92380, 93952, 95360, 109366, 113770, 117440, 147808, 182032, 184760, 190720, 218732, 227540, 234880, 273415, 295616, 364064, 369520, 437464, 455080, 469760, 546830, 591232, 728128, 739040, 874928, 910160, 1093660, 1182464, 1456256, 1478080, 1695173, 1749856, 1820320, 2187320, 2912512, 2956160, 3390346, 3499712, 3640640, 4374640, 5912320, 6780692, 6999424, 7281280, 8475865, 8749280, 13561384, 13998848, 14562560, 16951730, 17498560, 27122768, 33903460, 34997120, 54245536, 67806920, 69994240, 108491072, 135613840, 216982144, 271227680, 433964288, 542455360, 1084910720, 2169821440]

約数ペア:

[(1, 2169821440), (2, 1084910720), (4, 542455360), (5, 433964288), (8, 271227680), (10, 216982144), (16, 135613840), (20, 108491072), (31, 69994240), (32, 67806920), (40, 54245536), (62, 34997120), (64, 33903460), (80, 27122768), (124, 17498560), (128, 16951730), (149, 14562560), (155, 13998848), (160, 13561384), (248, 8749280), (256, 8475865), (298, 7281280), (310, 6999424), (320, 6780692), (367, 5912320), (496, 4374640), (596, 3640640), (620, 3499712), (640, 3390346), (734, 2956160), (745, 2912512), (992, 2187320), (1192, 1820320), (1240, 1749856), (1280, 1695173), (1468, 1478080), (1490, 1456256), (1835, 1182464), (1984, 1093660), (2384, 910160), (2480, 874928), (2936, 739040), (2980, 728128), (3670, 591232), (3968, 546830), (4619, 469760), (4768, 455080), (4960, 437464), (5872, 369520), (5960, 364064), (7340, 295616), (7936, 273415), (9238, 234880), (9536, 227540), (9920, 218732), (11377, 190720), (11744, 184760), (11920, 182032), (14680, 147808), (18476, 117440), (19072, 113770), (19840, 109366), (22754, 95360), (23095, 93952), (23488, 92380), (23840, 91016), (29360, 73904), (36952, 58720), (38144, 56885), (39680, 54683), (45508, 47680), (46190, 46976)]