221418240

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{109}}^1$

素因数の和:179

約数の個数: 216

約数和(自身を含む): 746019120

約数和(自身を除く): 524600880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 109, 115, 120, 128, 138, 160, 184, 192, 218, 230, 240, 256, 276, 320, 327, 345, 368, 384, 436, 460, 480, 529, 545, 552, 640, 654, 690, 736, 768, 872, 920, 960, 1058, 1090, 1104, 1280, 1308, 1380, 1472, 1587, 1635, 1744, 1840, 1920, 2116, 2180, 2208, 2507, 2616, 2645, 2760, 2944, 3174, 3270, 3488, 3680, 3840, 4232, 4360, 4416, 5014, 5232, 5290, 5520, 5888, 6348, 6540, 6976, 7360, 7521, 7935, 8464, 8720, 8832, 10028, 10464, 10580, 11040, 12535, 12696, 13080, 13952, 14720, 15042, 15870, 16928, 17440, 17664, 20056, 20928, 21160, 22080, 25070, 25392, 26160, 27904, 29440, 30084, 31740, 33856, 34880, 37605, 40112, 41856, 42320, 44160, 50140, 50784, 52320, 57661, 60168, 63480, 67712, 69760, 75210, 80224, 83712, 84640, 88320, 100280, 101568, 104640, 115322, 120336, 126960, 135424, 139520, 150420, 160448, 169280, 172983, 200560, 203136, 209280, 230644, 240672, 253920, 288305, 300840, 320896, 338560, 345966, 401120, 406272, 418560, 461288, 481344, 507840, 576610, 601680, 641792, 677120, 691932, 802240, 864915, 922576, 962688, 1015680, 1153220, 1203360, 1383864, 1604480, 1729830, 1845152, 1925376, 2031360, 2306440, 2406720, 2767728, 3208960, 3459660, 3690304, 4612880, 4813440, 5535456, 6919320, 7380608, 9225760, 9626880, 11070912, 13838640, 14761216, 18451520, 22141824, 27677280, 36903040, 44283648, 55354560, 73806080, 110709120, 221418240]

約数ペア:

[(1, 221418240), (2, 110709120), (3, 73806080), (4, 55354560), (5, 44283648), (6, 36903040), (8, 27677280), (10, 22141824), (12, 18451520), (15, 14761216), (16, 13838640), (20, 11070912), (23, 9626880), (24, 9225760), (30, 7380608), (32, 6919320), (40, 5535456), (46, 4813440), (48, 4612880), (60, 3690304), (64, 3459660), (69, 3208960), (80, 2767728), (92, 2406720), (96, 2306440), (109, 2031360), (115, 1925376), (120, 1845152), (128, 1729830), (138, 1604480), (160, 1383864), (184, 1203360), (192, 1153220), (218, 1015680), (230, 962688), (240, 922576), (256, 864915), (276, 802240), (320, 691932), (327, 677120), (345, 641792), (368, 601680), (384, 576610), (436, 507840), (460, 481344), (480, 461288), (529, 418560), (545, 406272), (552, 401120), (640, 345966), (654, 338560), (690, 320896), (736, 300840), (768, 288305), (872, 253920), (920, 240672), (960, 230644), (1058, 209280), (1090, 203136), (1104, 200560), (1280, 172983), (1308, 169280), (1380, 160448), (1472, 150420), (1587, 139520), (1635, 135424), (1744, 126960), (1840, 120336), (1920, 115322), (2116, 104640), (2180, 101568), (2208, 100280), (2507, 88320), (2616, 84640), (2645, 83712), (2760, 80224), (2944, 75210), (3174, 69760), (3270, 67712), (3488, 63480), (3680, 60168), (3840, 57661), (4232, 52320), (4360, 50784), (4416, 50140), (5014, 44160), (5232, 42320), (5290, 41856), (5520, 40112), (5888, 37605), (6348, 34880), (6540, 33856), (6976, 31740), (7360, 30084), (7521, 29440), (7935, 27904), (8464, 26160), (8720, 25392), (8832, 25070), (10028, 22080), (10464, 21160), (10580, 20928), (11040, 20056), (12535, 17664), (12696, 17440), (13080, 16928), (13952, 15870), (14720, 15042)]