20788320

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1$

素因数の和:317

約数の個数: 192

約数和(自身を含む): 78382080

約数和(自身を除く): 57593760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 138, 140, 160, 161, 168, 184, 210, 224, 230, 240, 269, 276, 280, 322, 336, 345, 368, 420, 460, 480, 483, 538, 552, 560, 644, 672, 690, 736, 805, 807, 840, 920, 966, 1076, 1104, 1120, 1288, 1345, 1380, 1610, 1614, 1680, 1840, 1883, 1932, 2152, 2208, 2415, 2576, 2690, 2760, 3220, 3228, 3360, 3680, 3766, 3864, 4035, 4304, 4830, 5152, 5380, 5520, 5649, 6187, 6440, 6456, 7532, 7728, 8070, 8608, 9415, 9660, 10760, 11040, 11298, 12374, 12880, 12912, 15064, 15456, 16140, 18561, 18830, 19320, 21520, 22596, 24748, 25760, 25824, 28245, 30128, 30935, 32280, 37122, 37660, 38640, 43040, 43309, 45192, 49496, 56490, 60256, 61870, 64560, 74244, 75320, 77280, 86618, 90384, 92805, 98992, 112980, 123740, 129120, 129927, 148488, 150640, 173236, 180768, 185610, 197984, 216545, 225960, 247480, 259854, 296976, 301280, 346472, 371220, 433090, 451920, 494960, 519708, 593952, 649635, 692944, 742440, 866180, 903840, 989920, 1039416, 1299270, 1385888, 1484880, 1732360, 2078832, 2598540, 2969760, 3464720, 4157664, 5197080, 6929440, 10394160, 20788320]

約数ペア:

[(1, 20788320), (2, 10394160), (3, 6929440), (4, 5197080), (5, 4157664), (6, 3464720), (7, 2969760), (8, 2598540), (10, 2078832), (12, 1732360), (14, 1484880), (15, 1385888), (16, 1299270), (20, 1039416), (21, 989920), (23, 903840), (24, 866180), (28, 742440), (30, 692944), (32, 649635), (35, 593952), (40, 519708), (42, 494960), (46, 451920), (48, 433090), (56, 371220), (60, 346472), (69, 301280), (70, 296976), (80, 259854), (84, 247480), (92, 225960), (96, 216545), (105, 197984), (112, 185610), (115, 180768), (120, 173236), (138, 150640), (140, 148488), (160, 129927), (161, 129120), (168, 123740), (184, 112980), (210, 98992), (224, 92805), (230, 90384), (240, 86618), (269, 77280), (276, 75320), (280, 74244), (322, 64560), (336, 61870), (345, 60256), (368, 56490), (420, 49496), (460, 45192), (480, 43309), (483, 43040), (538, 38640), (552, 37660), (560, 37122), (644, 32280), (672, 30935), (690, 30128), (736, 28245), (805, 25824), (807, 25760), (840, 24748), (920, 22596), (966, 21520), (1076, 19320), (1104, 18830), (1120, 18561), (1288, 16140), (1345, 15456), (1380, 15064), (1610, 12912), (1614, 12880), (1680, 12374), (1840, 11298), (1883, 11040), (1932, 10760), (2152, 9660), (2208, 9415), (2415, 8608), (2576, 8070), (2690, 7728), (2760, 7532), (3220, 6456), (3228, 6440), (3360, 6187), (3680, 5649), (3766, 5520), (3864, 5380), (4035, 5152), (4304, 4830)]