20341935640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{110819}}^1$

素因数の和:111196

約数の個数: 64

約数和(自身を含む): 49430152800

約数和(自身を除く): 29088217160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 353, 520, 706, 1412, 1765, 2824, 3530, 4589, 7060, 9178, 14120, 18356, 22945, 36712, 45890, 91780, 110819, 183560, 221638, 443276, 554095, 886552, 1108190, 1440647, 2216380, 2881294, 4432760, 5762588, 7203235, 11525176, 14406470, 28812940, 39119107, 57625880, 78238214, 156476428, 195595535, 312952856, 391191070, 508548391, 782382140, 1017096782, 1564764280, 2034193564, 2542741955, 4068387128, 5085483910, 10170967820, 20341935640]

約数ペア:

[(1, 20341935640), (2, 10170967820), (4, 5085483910), (5, 4068387128), (8, 2542741955), (10, 2034193564), (13, 1564764280), (20, 1017096782), (26, 782382140), (40, 508548391), (52, 391191070), (65, 312952856), (104, 195595535), (130, 156476428), (260, 78238214), (353, 57625880), (520, 39119107), (706, 28812940), (1412, 14406470), (1765, 11525176), (2824, 7203235), (3530, 5762588), (4589, 4432760), (7060, 2881294), (9178, 2216380), (14120, 1440647), (18356, 1108190), (22945, 886552), (36712, 554095), (45890, 443276), (91780, 221638), (110819, 183560)]