20870126032

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{261347}}^1$

素因数の和:261416

約数の個数: 80

約数和(自身を含む): 49777385472

約数和(自身を除く): 28907259440

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 31, 46, 56, 62, 92, 112, 124, 161, 184, 217, 248, 322, 368, 434, 496, 644, 713, 868, 1288, 1426, 1736, 2576, 2852, 3472, 4991, 5704, 9982, 11408, 19964, 39928, 79856, 261347, 522694, 1045388, 1829429, 2090776, 3658858, 4181552, 6010981, 7317716, 8101757, 12021962, 14635432, 16203514, 24043924, 29270864, 32407028, 42076867, 48087848, 56712299, 64814056, 84153734, 96175696, 113424598, 129628112, 168307468, 186340411, 226849196, 336614936, 372680822, 453698392, 673229872, 745361644, 907396784, 1304382877, 1490723288, 2608765754, 2981446576, 5217531508, 10435063016, 20870126032]

約数ペア:

[(1, 20870126032), (2, 10435063016), (4, 5217531508), (7, 2981446576), (8, 2608765754), (14, 1490723288), (16, 1304382877), (23, 907396784), (28, 745361644), (31, 673229872), (46, 453698392), (56, 372680822), (62, 336614936), (92, 226849196), (112, 186340411), (124, 168307468), (161, 129628112), (184, 113424598), (217, 96175696), (248, 84153734), (322, 64814056), (368, 56712299), (434, 48087848), (496, 42076867), (644, 32407028), (713, 29270864), (868, 24043924), (1288, 16203514), (1426, 14635432), (1736, 12021962), (2576, 8101757), (2852, 7317716), (3472, 6010981), (4991, 4181552), (5704, 3658858), (9982, 2090776), (11408, 1829429), (19964, 1045388), (39928, 522694), (79856, 261347)]