20900160

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:126

約数の個数: 224

約数和(自身を含む): 76809600

約数和(自身を除く): 55909440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 41, 45, 48, 54, 59, 60, 64, 72, 80, 82, 90, 96, 108, 118, 120, 123, 135, 144, 160, 164, 177, 180, 192, 205, 216, 236, 240, 246, 270, 288, 295, 320, 328, 354, 360, 369, 410, 432, 472, 480, 492, 531, 540, 576, 590, 615, 656, 708, 720, 738, 820, 864, 885, 944, 960, 984, 1062, 1080, 1107, 1180, 1230, 1312, 1416, 1440, 1476, 1593, 1640, 1728, 1770, 1845, 1888, 1968, 2124, 2160, 2214, 2360, 2419, 2460, 2624, 2655, 2832, 2880, 2952, 3186, 3280, 3540, 3690, 3776, 3936, 4248, 4320, 4428, 4720, 4838, 4920, 5310, 5535, 5664, 5904, 6372, 6560, 7080, 7257, 7380, 7872, 7965, 8496, 8640, 8856, 9440, 9676, 9840, 10620, 11070, 11328, 11808, 12095, 12744, 13120, 14160, 14514, 14760, 15930, 16992, 17712, 18880, 19352, 19680, 21240, 21771, 22140, 23616, 24190, 25488, 28320, 29028, 29520, 31860, 33984, 35424, 36285, 38704, 39360, 42480, 43542, 44280, 48380, 50976, 56640, 58056, 59040, 63720, 65313, 70848, 72570, 77408, 84960, 87084, 88560, 96760, 101952, 108855, 116112, 118080, 127440, 130626, 145140, 154816, 169920, 174168, 177120, 193520, 217710, 232224, 254880, 261252, 290280, 326565, 348336, 354240, 387040, 435420, 464448, 509760, 522504, 580560, 653130, 696672, 774080, 870840, 1045008, 1161120, 1306260, 1393344, 1741680, 2090016, 2322240, 2612520, 3483360, 4180032, 5225040, 6966720, 10450080, 20900160]

約数ペア:

[(1, 20900160), (2, 10450080), (3, 6966720), (4, 5225040), (5, 4180032), (6, 3483360), (8, 2612520), (9, 2322240), (10, 2090016), (12, 1741680), (15, 1393344), (16, 1306260), (18, 1161120), (20, 1045008), (24, 870840), (27, 774080), (30, 696672), (32, 653130), (36, 580560), (40, 522504), (41, 509760), (45, 464448), (48, 435420), (54, 387040), (59, 354240), (60, 348336), (64, 326565), (72, 290280), (80, 261252), (82, 254880), (90, 232224), (96, 217710), (108, 193520), (118, 177120), (120, 174168), (123, 169920), (135, 154816), (144, 145140), (160, 130626), (164, 127440), (177, 118080), (180, 116112), (192, 108855), (205, 101952), (216, 96760), (236, 88560), (240, 87084), (246, 84960), (270, 77408), (288, 72570), (295, 70848), (320, 65313), (328, 63720), (354, 59040), (360, 58056), (369, 56640), (410, 50976), (432, 48380), (472, 44280), (480, 43542), (492, 42480), (531, 39360), (540, 38704), (576, 36285), (590, 35424), (615, 33984), (656, 31860), (708, 29520), (720, 29028), (738, 28320), (820, 25488), (864, 24190), (885, 23616), (944, 22140), (960, 21771), (984, 21240), (1062, 19680), (1080, 19352), (1107, 18880), (1180, 17712), (1230, 16992), (1312, 15930), (1416, 14760), (1440, 14514), (1476, 14160), (1593, 13120), (1640, 12744), (1728, 12095), (1770, 11808), (1845, 11328), (1888, 11070), (1968, 10620), (2124, 9840), (2160, 9676), (2214, 9440), (2360, 8856), (2419, 8640), (2460, 8496), (2624, 7965), (2655, 7872), (2832, 7380), (2880, 7257), (2952, 7080), (3186, 6560), (3280, 6372), (3540, 5904), (3690, 5664), (3776, 5535), (3936, 5310), (4248, 4920), (4320, 4838), (4428, 4720)]