20794901680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{52081}}^1$

素因数の和:52155

約数の個数: 160

約数和(自身を含む): 59518476288

約数和(自身を除く): 38723574608

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 80, 92, 112, 115, 124, 140, 155, 161, 184, 217, 230, 248, 280, 310, 322, 368, 434, 460, 496, 560, 620, 644, 713, 805, 868, 920, 1085, 1240, 1288, 1426, 1610, 1736, 1840, 2170, 2480, 2576, 2852, 3220, 3472, 3565, 4340, 4991, 5704, 6440, 7130, 8680, 9982, 11408, 12880, 14260, 17360, 19964, 24955, 28520, 39928, 49910, 52081, 57040, 79856, 99820, 104162, 199640, 208324, 260405, 364567, 399280, 416648, 520810, 729134, 833296, 1041620, 1197863, 1458268, 1614511, 1822835, 2083240, 2395726, 2916536, 3229022, 3645670, 4166480, 4791452, 5833072, 5989315, 6458044, 7291340, 8072555, 8385041, 9582904, 11301577, 11978630, 12916088, 14582680, 16145110, 16770082, 19165808, 22603154, 23957260, 25832176, 29165360, 32290220, 33540164, 37133753, 41925205, 45206308, 47914520, 56507885, 64580440, 67080328, 74267506, 83850410, 90412616, 95829040, 113015770, 129160880, 134160656, 148535012, 167700820, 180825232, 185668765, 226031540, 259936271, 297070024, 335401640, 371337530, 452063080, 519872542, 594140048, 670803280, 742675060, 904126160, 1039745084, 1299681355, 1485350120, 2079490168, 2599362710, 2970700240, 4158980336, 5198725420, 10397450840, 20794901680]

約数ペア:

[(1, 20794901680), (2, 10397450840), (4, 5198725420), (5, 4158980336), (7, 2970700240), (8, 2599362710), (10, 2079490168), (14, 1485350120), (16, 1299681355), (20, 1039745084), (23, 904126160), (28, 742675060), (31, 670803280), (35, 594140048), (40, 519872542), (46, 452063080), (56, 371337530), (62, 335401640), (70, 297070024), (80, 259936271), (92, 226031540), (112, 185668765), (115, 180825232), (124, 167700820), (140, 148535012), (155, 134160656), (161, 129160880), (184, 113015770), (217, 95829040), (230, 90412616), (248, 83850410), (280, 74267506), (310, 67080328), (322, 64580440), (368, 56507885), (434, 47914520), (460, 45206308), (496, 41925205), (560, 37133753), (620, 33540164), (644, 32290220), (713, 29165360), (805, 25832176), (868, 23957260), (920, 22603154), (1085, 19165808), (1240, 16770082), (1288, 16145110), (1426, 14582680), (1610, 12916088), (1736, 11978630), (1840, 11301577), (2170, 9582904), (2480, 8385041), (2576, 8072555), (2852, 7291340), (3220, 6458044), (3472, 5989315), (3565, 5833072), (4340, 4791452), (4991, 4166480), (5704, 3645670), (6440, 3229022), (7130, 2916536), (8680, 2395726), (9982, 2083240), (11408, 1822835), (12880, 1614511), (14260, 1458268), (17360, 1197863), (19964, 1041620), (24955, 833296), (28520, 729134), (39928, 520810), (49910, 416648), (52081, 399280), (57040, 364567), (79856, 260405), (99820, 208324), (104162, 199640)]