138681760

素因数分解:

$2^5\times 5^1\times 7^4\times {\mathrm{19}}^2$

素因数の和:81

約数の個数: 180

約数和(自身を含む): 403394418

約数和(自身を除く): 264712658

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 343, 361, 380, 392, 490, 532, 560, 608, 665, 686, 722, 760, 784, 931, 980, 1064, 1120, 1330, 1372, 1444, 1520, 1568, 1715, 1805, 1862, 1960, 2128, 2401, 2527, 2660, 2744, 2888, 3040, 3430, 3610, 3724, 3920, 4256, 4655, 4802, 5054, 5320, 5488, 5776, 6517, 6860, 7220, 7448, 7840, 9310, 9604, 10108, 10640, 10976, 11552, 12005, 12635, 13034, 13720, 14440, 14896, 17689, 18620, 19208, 20216, 21280, 24010, 25270, 26068, 27440, 28880, 29792, 32585, 35378, 37240, 38416, 40432, 45619, 48020, 50540, 52136, 54880, 57760, 65170, 70756, 74480, 76832, 80864, 88445, 91238, 96040, 101080, 104272, 123823, 130340, 141512, 148960, 176890, 182476, 192080, 202160, 208544, 228095, 247646, 260680, 283024, 353780, 364952, 384160, 404320, 456190, 495292, 521360, 566048, 619115, 707560, 729904, 866761, 912380, 990584, 1042720, 1238230, 1415120, 1459808, 1733522, 1824760, 1981168, 2476460, 2830240, 3467044, 3649520, 3962336, 4333805, 4952920, 6934088, 7299040, 8667610, 9905840, 13868176, 17335220, 19811680, 27736352, 34670440, 69340880, 138681760]

約数ペア:

[(1, 138681760), (2, 69340880), (4, 34670440), (5, 27736352), (7, 19811680), (8, 17335220), (10, 13868176), (14, 9905840), (16, 8667610), (19, 7299040), (20, 6934088), (28, 4952920), (32, 4333805), (35, 3962336), (38, 3649520), (40, 3467044), (49, 2830240), (56, 2476460), (70, 1981168), (76, 1824760), (80, 1733522), (95, 1459808), (98, 1415120), (112, 1238230), (133, 1042720), (140, 990584), (152, 912380), (160, 866761), (190, 729904), (196, 707560), (224, 619115), (245, 566048), (266, 521360), (280, 495292), (304, 456190), (343, 404320), (361, 384160), (380, 364952), (392, 353780), (490, 283024), (532, 260680), (560, 247646), (608, 228095), (665, 208544), (686, 202160), (722, 192080), (760, 182476), (784, 176890), (931, 148960), (980, 141512), (1064, 130340), (1120, 123823), (1330, 104272), (1372, 101080), (1444, 96040), (1520, 91238), (1568, 88445), (1715, 80864), (1805, 76832), (1862, 74480), (1960, 70756), (2128, 65170), (2401, 57760), (2527, 54880), (2660, 52136), (2744, 50540), (2888, 48020), (3040, 45619), (3430, 40432), (3610, 38416), (3724, 37240), (3920, 35378), (4256, 32585), (4655, 29792), (4802, 28880), (5054, 27440), (5320, 26068), (5488, 25270), (5776, 24010), (6517, 21280), (6860, 20216), (7220, 19208), (7448, 18620), (7840, 17689), (9310, 14896), (9604, 14440), (10108, 13720), (10640, 13034), (10976, 12635), (11552, 12005)]