19700144

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:162

約数の個数: 80

約数和(自身を含む): 43711488

約数和(自身を除く): 24011344

約数列:

[1, 2, 4, 8, 16, 17, 23, 34, 46, 47, 67, 68, 92, 94, 134, 136, 184, 188, 268, 272, 368, 376, 391, 536, 752, 782, 799, 1072, 1081, 1139, 1541, 1564, 1598, 2162, 2278, 3082, 3128, 3149, 3196, 4324, 4556, 6164, 6256, 6298, 6392, 8648, 9112, 12328, 12596, 12784, 17296, 18224, 18377, 24656, 25192, 26197, 36754, 50384, 52394, 53533, 72427, 73508, 104788, 107066, 144854, 147016, 209576, 214132, 289708, 294032, 419152, 428264, 579416, 856528, 1158832, 1231259, 2462518, 4925036, 9850072, 19700144]

約数ペア:

[(1, 19700144), (2, 9850072), (4, 4925036), (8, 2462518), (16, 1231259), (17, 1158832), (23, 856528), (34, 579416), (46, 428264), (47, 419152), (67, 294032), (68, 289708), (92, 214132), (94, 209576), (134, 147016), (136, 144854), (184, 107066), (188, 104788), (268, 73508), (272, 72427), (368, 53533), (376, 52394), (391, 50384), (536, 36754), (752, 26197), (782, 25192), (799, 24656), (1072, 18377), (1081, 18224), (1139, 17296), (1541, 12784), (1564, 12596), (1598, 12328), (2162, 9112), (2278, 8648), (3082, 6392), (3128, 6298), (3149, 6256), (3196, 6164), (4324, 4556)]