16385480

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 38491200

約数和(自身を除く): 22105720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 59, 106, 118, 131, 212, 236, 262, 265, 295, 424, 472, 524, 530, 590, 655, 1048, 1060, 1180, 1310, 2120, 2360, 2620, 3127, 5240, 6254, 6943, 7729, 12508, 13886, 15458, 15635, 25016, 27772, 30916, 31270, 34715, 38645, 55544, 61832, 62540, 69430, 77290, 125080, 138860, 154580, 277720, 309160, 409637, 819274, 1638548, 2048185, 3277096, 4096370, 8192740, 16385480]

約数ペア:

[(1, 16385480), (2, 8192740), (4, 4096370), (5, 3277096), (8, 2048185), (10, 1638548), (20, 819274), (40, 409637), (53, 309160), (59, 277720), (106, 154580), (118, 138860), (131, 125080), (212, 77290), (236, 69430), (262, 62540), (265, 61832), (295, 55544), (424, 38645), (472, 34715), (524, 31270), (530, 30916), (590, 27772), (655, 25016), (1048, 15635), (1060, 15458), (1180, 13886), (1310, 12508), (2120, 7729), (2360, 6943), (2620, 6254), (3127, 5240)]