256866064

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{176419}}^1$

素因数の和:176447

約数の個数: 40

約数和(自身を含む): 612530240

約数和(自身を除く): 355664176

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 176419, 352838, 705676, 1234933, 1411352, 2293447, 2469866, 2822704, 4586894, 4939732, 9173788, 9879464, 16054129, 18347576, 19758928, 32108258, 36695152, 64216516, 128433032, 256866064]

約数ペア:

[(1, 256866064), (2, 128433032), (4, 64216516), (7, 36695152), (8, 32108258), (13, 19758928), (14, 18347576), (16, 16054129), (26, 9879464), (28, 9173788), (52, 4939732), (56, 4586894), (91, 2822704), (104, 2469866), (112, 2293447), (182, 1411352), (208, 1234933), (364, 705676), (728, 352838), (1456, 176419)]