11790220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 26939808

約数和(自身を除く): 15149588

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 260, 274, 331, 548, 662, 685, 1324, 1370, 1655, 1781, 2740, 3310, 3562, 4303, 6620, 7124, 8606, 8905, 17212, 17810, 21515, 35620, 43030, 45347, 86060, 90694, 181388, 226735, 453470, 589511, 906940, 1179022, 2358044, 2947555, 5895110, 11790220]

約数ペア:

[(1, 11790220), (2, 5895110), (4, 2947555), (5, 2358044), (10, 1179022), (13, 906940), (20, 589511), (26, 453470), (52, 226735), (65, 181388), (130, 90694), (137, 86060), (260, 45347), (274, 43030), (331, 35620), (548, 21515), (662, 17810), (685, 17212), (1324, 8905), (1370, 8606), (1655, 7124), (1781, 6620), (2740, 4303), (3310, 3562)]