1638256

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1$

素因数の和:361

約数の個数: 40

約数和(自身を含む): 3548880

約数和(自身を除く): 1910624

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 317, 323, 634, 646, 1268, 1292, 2536, 2584, 5072, 5168, 5389, 6023, 10778, 12046, 21556, 24092, 43112, 48184, 86224, 96368, 102391, 204782, 409564, 819128, 1638256]

約数ペア:

[(1, 1638256), (2, 819128), (4, 409564), (8, 204782), (16, 102391), (17, 96368), (19, 86224), (34, 48184), (38, 43112), (68, 24092), (76, 21556), (136, 12046), (152, 10778), (272, 6023), (304, 5389), (317, 5168), (323, 5072), (634, 2584), (646, 2536), (1268, 1292)]