643448624

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{1231}}^1$

素因数の和:1618

約数の個数: 80

約数和(自身を含む): 1539901440

約数和(自身を除く): 896452816

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 359, 364, 718, 728, 1231, 1436, 1456, 2462, 2513, 2872, 4667, 4924, 5026, 5744, 8617, 9334, 9848, 10052, 16003, 17234, 18668, 19696, 20104, 32006, 32669, 34468, 37336, 40208, 64012, 65338, 68936, 74672, 112021, 128024, 130676, 137872, 224042, 256048, 261352, 441929, 448084, 522704, 883858, 896168, 1767716, 1792336, 3093503, 3535432, 5745077, 6187006, 7070864, 11490154, 12374012, 22980308, 24748024, 40215539, 45960616, 49496048, 80431078, 91921232, 160862156, 321724312, 643448624]

約数ペア:

[(1, 643448624), (2, 321724312), (4, 160862156), (7, 91921232), (8, 80431078), (13, 49496048), (14, 45960616), (16, 40215539), (26, 24748024), (28, 22980308), (52, 12374012), (56, 11490154), (91, 7070864), (104, 6187006), (112, 5745077), (182, 3535432), (208, 3093503), (359, 1792336), (364, 1767716), (718, 896168), (728, 883858), (1231, 522704), (1436, 448084), (1456, 441929), (2462, 261352), (2513, 256048), (2872, 224042), (4667, 137872), (4924, 130676), (5026, 128024), (5744, 112021), (8617, 74672), (9334, 68936), (9848, 65338), (10052, 64012), (16003, 40208), (17234, 37336), (18668, 34468), (19696, 32669), (20104, 32006)]