278802160

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5471}}^1$

素因数の和:5511

約数の個数: 120

約数和(自身を含む): 812198016

約数和(自身を除く): 533395856

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 208, 245, 260, 280, 364, 392, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1274, 1456, 1820, 1960, 2548, 3185, 3640, 3920, 5096, 5471, 6370, 7280, 10192, 10942, 12740, 21884, 25480, 27355, 38297, 43768, 50960, 54710, 71123, 76594, 87536, 109420, 142246, 153188, 191485, 218840, 268079, 284492, 306376, 355615, 382970, 437680, 497861, 536158, 568984, 612752, 711230, 765940, 995722, 1072316, 1137968, 1340395, 1422460, 1531880, 1991444, 2144632, 2489305, 2680790, 2844920, 3063760, 3485027, 3982888, 4289264, 4978610, 5361580, 5689840, 6970054, 7965776, 9957220, 10723160, 13940108, 17425135, 19914440, 21446320, 27880216, 34850270, 39828880, 55760432, 69700540, 139401080, 278802160]

約数ペア:

[(1, 278802160), (2, 139401080), (4, 69700540), (5, 55760432), (7, 39828880), (8, 34850270), (10, 27880216), (13, 21446320), (14, 19914440), (16, 17425135), (20, 13940108), (26, 10723160), (28, 9957220), (35, 7965776), (40, 6970054), (49, 5689840), (52, 5361580), (56, 4978610), (65, 4289264), (70, 3982888), (80, 3485027), (91, 3063760), (98, 2844920), (104, 2680790), (112, 2489305), (130, 2144632), (140, 1991444), (182, 1531880), (196, 1422460), (208, 1340395), (245, 1137968), (260, 1072316), (280, 995722), (364, 765940), (392, 711230), (455, 612752), (490, 568984), (520, 536158), (560, 497861), (637, 437680), (728, 382970), (784, 355615), (910, 306376), (980, 284492), (1040, 268079), (1274, 218840), (1456, 191485), (1820, 153188), (1960, 142246), (2548, 109420), (3185, 87536), (3640, 76594), (3920, 71123), (5096, 54710), (5471, 50960), (6370, 43768), (7280, 38297), (10192, 27355), (10942, 25480), (12740, 21884)]