20101017640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3137}}^1\times {\mathrm{14563}}^1$

素因数の和:17722

約数の個数: 64

約数和(自身を含む): 49357978560

約数和(自身を除く): 29256960920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 3137, 6274, 12548, 14563, 15685, 25096, 29126, 31370, 34507, 58252, 62740, 69014, 72815, 116504, 125480, 138028, 145630, 160193, 172535, 276056, 291260, 320386, 345070, 582520, 640772, 690140, 800965, 1281544, 1380280, 1601930, 3203860, 6407720, 45684131, 91368262, 182736524, 228420655, 365473048, 456841310, 502525441, 913682620, 1005050882, 1827365240, 2010101764, 2512627205, 4020203528, 5025254410, 10050508820, 20101017640]

約数ペア:

[(1, 20101017640), (2, 10050508820), (4, 5025254410), (5, 4020203528), (8, 2512627205), (10, 2010101764), (11, 1827365240), (20, 1005050882), (22, 913682620), (40, 502525441), (44, 456841310), (55, 365473048), (88, 228420655), (110, 182736524), (220, 91368262), (440, 45684131), (3137, 6407720), (6274, 3203860), (12548, 1601930), (14563, 1380280), (15685, 1281544), (25096, 800965), (29126, 690140), (31370, 640772), (34507, 582520), (58252, 345070), (62740, 320386), (69014, 291260), (72815, 276056), (116504, 172535), (125480, 160193), (138028, 145630)]