20170981678

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1\times {\mathrm{27917}}^1$

素因数の和:28284

約数の個数: 32

約数和(自身を含む): 32563555200

約数和(自身を除く): 12392573522

約数列:

[1, 2, 17, 34, 79, 158, 269, 538, 1343, 2686, 4573, 9146, 21251, 27917, 42502, 55834, 361267, 474589, 722534, 949178, 2205443, 4410886, 7509673, 15019346, 37492531, 74985062, 127664441, 255328882, 593264167, 1186528334, 10085490839, 20170981678]

約数ペア:

[(1, 20170981678), (2, 10085490839), (17, 1186528334), (34, 593264167), (79, 255328882), (158, 127664441), (269, 74985062), (538, 37492531), (1343, 15019346), (2686, 7509673), (4573, 4410886), (9146, 2205443), (21251, 949178), (27917, 722534), (42502, 474589), (55834, 361267)]