648103690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{10909}}^1$

素因数の和:11386

約数の個数: 32

約数和(自身を含む): 1259188560

約数和(自身を除く): 611084870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 457, 914, 2285, 4570, 5941, 10909, 11882, 21818, 29705, 54545, 59410, 109090, 141817, 283634, 709085, 1418170, 4985413, 9970826, 24927065, 49854130, 64810369, 129620738, 324051845, 648103690]

約数ペア:

[(1, 648103690), (2, 324051845), (5, 129620738), (10, 64810369), (13, 49854130), (26, 24927065), (65, 9970826), (130, 4985413), (457, 1418170), (914, 709085), (2285, 283634), (4570, 141817), (5941, 109090), (10909, 59410), (11882, 54545), (21818, 29705)]