16557580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1481}}^1$

素因数の和:1546

約数の個数: 48

約数和(自身を含む): 38342304

約数和(自身を除く): 21784724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 1481, 2236, 2795, 2962, 5590, 5924, 7405, 11180, 14810, 19253, 29620, 38506, 63683, 77012, 96265, 127366, 192530, 254732, 318415, 385060, 636830, 827879, 1273660, 1655758, 3311516, 4139395, 8278790, 16557580]

約数ペア:

[(1, 16557580), (2, 8278790), (4, 4139395), (5, 3311516), (10, 1655758), (13, 1273660), (20, 827879), (26, 636830), (43, 385060), (52, 318415), (65, 254732), (86, 192530), (130, 127366), (172, 96265), (215, 77012), (260, 63683), (430, 38506), (559, 29620), (860, 19253), (1118, 14810), (1481, 11180), (2236, 7405), (2795, 5924), (2962, 5590)]