638694840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:374

約数の個数: 256

約数和(自身を含む): 2293401600

約数和(自身を除く): 1654706760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 29, 30, 35, 40, 42, 56, 58, 60, 70, 84, 87, 105, 116, 120, 140, 145, 157, 167, 168, 174, 203, 210, 232, 280, 290, 314, 334, 348, 406, 420, 435, 471, 501, 580, 609, 628, 668, 696, 785, 812, 835, 840, 870, 942, 1002, 1015, 1099, 1160, 1169, 1218, 1256, 1336, 1570, 1624, 1670, 1740, 1884, 2004, 2030, 2198, 2338, 2355, 2436, 2505, 3045, 3140, 3297, 3340, 3480, 3507, 3768, 4008, 4060, 4396, 4553, 4676, 4710, 4843, 4872, 5010, 5495, 5845, 6090, 6280, 6594, 6680, 7014, 8120, 8792, 9106, 9352, 9420, 9686, 10020, 10990, 11690, 12180, 13188, 13659, 14028, 14529, 16485, 17535, 18212, 18840, 19372, 20040, 21980, 22765, 23380, 24215, 24360, 26219, 26376, 27318, 28056, 29058, 31871, 32970, 33901, 35070, 36424, 38744, 43960, 45530, 46760, 48430, 52438, 54636, 58116, 63742, 65940, 67802, 68295, 70140, 72645, 78657, 91060, 95613, 96860, 101703, 104876, 109272, 116232, 127484, 131095, 131880, 135604, 136590, 140280, 145290, 157314, 159355, 169505, 182120, 183533, 191226, 193720, 203406, 209752, 254968, 262190, 271208, 273180, 290580, 314628, 318710, 339010, 367066, 382452, 393285, 406812, 478065, 508515, 524380, 546360, 550599, 581160, 629256, 637420, 678020, 734132, 760351, 764904, 786570, 813624, 917665, 956130, 1017030, 1048760, 1101198, 1274840, 1356040, 1468264, 1520702, 1573140, 1835330, 1912260, 2034060, 2202396, 2281053, 2752995, 3041404, 3146280, 3670660, 3801755, 3824520, 4068120, 4404792, 4562106, 5322457, 5505990, 6082808, 7341320, 7603510, 9124212, 10644914, 11011980, 11405265, 15207020, 15967371, 18248424, 21289828, 22023960, 22810530, 26612285, 30414040, 31934742, 42579656, 45621060, 53224570, 63869484, 79836855, 91242120, 106449140, 127738968, 159673710, 212898280, 319347420, 638694840]

約数ペア:

[(1, 638694840), (2, 319347420), (3, 212898280), (4, 159673710), (5, 127738968), (6, 106449140), (7, 91242120), (8, 79836855), (10, 63869484), (12, 53224570), (14, 45621060), (15, 42579656), (20, 31934742), (21, 30414040), (24, 26612285), (28, 22810530), (29, 22023960), (30, 21289828), (35, 18248424), (40, 15967371), (42, 15207020), (56, 11405265), (58, 11011980), (60, 10644914), (70, 9124212), (84, 7603510), (87, 7341320), (105, 6082808), (116, 5505990), (120, 5322457), (140, 4562106), (145, 4404792), (157, 4068120), (167, 3824520), (168, 3801755), (174, 3670660), (203, 3146280), (210, 3041404), (232, 2752995), (280, 2281053), (290, 2202396), (314, 2034060), (334, 1912260), (348, 1835330), (406, 1573140), (420, 1520702), (435, 1468264), (471, 1356040), (501, 1274840), (580, 1101198), (609, 1048760), (628, 1017030), (668, 956130), (696, 917665), (785, 813624), (812, 786570), (835, 764904), (840, 760351), (870, 734132), (942, 678020), (1002, 637420), (1015, 629256), (1099, 581160), (1160, 550599), (1169, 546360), (1218, 524380), (1256, 508515), (1336, 478065), (1570, 406812), (1624, 393285), (1670, 382452), (1740, 367066), (1884, 339010), (2004, 318710), (2030, 314628), (2198, 290580), (2338, 273180), (2355, 271208), (2436, 262190), (2505, 254968), (3045, 209752), (3140, 203406), (3297, 193720), (3340, 191226), (3480, 183533), (3507, 182120), (3768, 169505), (4008, 159355), (4060, 157314), (4396, 145290), (4553, 140280), (4676, 136590), (4710, 135604), (4843, 131880), (4872, 131095), (5010, 127484), (5495, 116232), (5845, 109272), (6090, 104876), (6280, 101703), (6594, 96860), (6680, 95613), (7014, 91060), (8120, 78657), (8792, 72645), (9106, 70140), (9352, 68295), (9420, 67802), (9686, 65940), (10020, 63742), (10990, 58116), (11690, 54636), (12180, 52438), (13188, 48430), (13659, 46760), (14028, 45530), (14529, 43960), (16485, 38744), (17535, 36424), (18212, 35070), (18840, 33901), (19372, 32970), (20040, 31871), (21980, 29058), (22765, 28056), (23380, 27318), (24215, 26376), (24360, 26219)]