20512679408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1009}}^1\times {\mathrm{2273}}^1$

素因数の和:3346

約数の個数: 80

約数和(自身を含む): 43858547040

約数和(自身を除く): 23345867632

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1009, 1118, 2018, 2236, 2273, 4036, 4472, 4546, 8072, 8944, 9092, 13117, 16144, 18184, 26234, 29549, 36368, 43387, 52468, 59098, 86774, 97739, 104936, 118196, 173548, 195478, 209872, 236392, 347096, 390956, 472784, 564031, 694192, 781912, 1128062, 1270607, 1563824, 2256124, 2293457, 2541214, 4512248, 4586914, 5082428, 9024496, 9173828, 10164856, 18347656, 20329712, 29814941, 36695312, 59629882, 98618651, 119259764, 197237302, 238519528, 394474604, 477039056, 788949208, 1282042463, 1577898416, 2564084926, 5128169852, 10256339704, 20512679408]

約数ペア:

[(1, 20512679408), (2, 10256339704), (4, 5128169852), (8, 2564084926), (13, 1577898416), (16, 1282042463), (26, 788949208), (43, 477039056), (52, 394474604), (86, 238519528), (104, 197237302), (172, 119259764), (208, 98618651), (344, 59629882), (559, 36695312), (688, 29814941), (1009, 20329712), (1118, 18347656), (2018, 10164856), (2236, 9173828), (2273, 9024496), (4036, 5082428), (4472, 4586914), (4546, 4512248), (8072, 2541214), (8944, 2293457), (9092, 2256124), (13117, 1563824), (16144, 1270607), (18184, 1128062), (26234, 781912), (29549, 694192), (36368, 564031), (43387, 472784), (52468, 390956), (59098, 347096), (86774, 236392), (97739, 209872), (104936, 195478), (118196, 173548)]