1620403456

素因数分解:

$2^8\times 7^1\times {\mathrm{37}}^1\times {\mathrm{24439}}^1$

素因数の和:24499

約数の個数: 72

約数和(自身を含む): 3796607360

約数和(自身を除く): 2176203904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 128, 148, 224, 256, 259, 296, 448, 518, 592, 896, 1036, 1184, 1792, 2072, 2368, 4144, 4736, 8288, 9472, 16576, 24439, 33152, 48878, 66304, 97756, 171073, 195512, 342146, 391024, 684292, 782048, 904243, 1368584, 1564096, 1808486, 2737168, 3128192, 3616972, 5474336, 6256384, 6329701, 7233944, 10948672, 12659402, 14467888, 21897344, 25318804, 28935776, 43794688, 50637608, 57871552, 101275216, 115743104, 202550432, 231486208, 405100864, 810201728, 1620403456]

約数ペア:

[(1, 1620403456), (2, 810201728), (4, 405100864), (7, 231486208), (8, 202550432), (14, 115743104), (16, 101275216), (28, 57871552), (32, 50637608), (37, 43794688), (56, 28935776), (64, 25318804), (74, 21897344), (112, 14467888), (128, 12659402), (148, 10948672), (224, 7233944), (256, 6329701), (259, 6256384), (296, 5474336), (448, 3616972), (518, 3128192), (592, 2737168), (896, 1808486), (1036, 1564096), (1184, 1368584), (1792, 904243), (2072, 782048), (2368, 684292), (4144, 391024), (4736, 342146), (8288, 195512), (9472, 171073), (16576, 97756), (24439, 66304), (33152, 48878)]