18440864

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{457}}^1$

素因数の和:577

約数の個数: 48

約数和(自身を含む): 39587688

約数和(自身を除く): 21146824

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 97, 104, 194, 208, 388, 416, 457, 776, 914, 1261, 1552, 1828, 2522, 3104, 3656, 5044, 5941, 7312, 10088, 11882, 14624, 20176, 23764, 40352, 44329, 47528, 88658, 95056, 177316, 190112, 354632, 576277, 709264, 1152554, 1418528, 2305108, 4610216, 9220432, 18440864]

約数ペア:

[(1, 18440864), (2, 9220432), (4, 4610216), (8, 2305108), (13, 1418528), (16, 1152554), (26, 709264), (32, 576277), (52, 354632), (97, 190112), (104, 177316), (194, 95056), (208, 88658), (388, 47528), (416, 44329), (457, 40352), (776, 23764), (914, 20176), (1261, 14624), (1552, 11882), (1828, 10088), (2522, 7312), (3104, 5941), (3656, 5044)]