664752392

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{49139}}^1$

素因数の和:49253

約数の個数: 32

約数和(自身を含む): 1326780000

約数和(自身を除く): 662027608

約数列:

[1, 2, 4, 8, 19, 38, 76, 89, 152, 178, 356, 712, 1691, 3382, 6764, 13528, 49139, 98278, 196556, 393112, 933641, 1867282, 3734564, 4373371, 7469128, 8746742, 17493484, 34986968, 83094049, 166188098, 332376196, 664752392]

約数ペア:

[(1, 664752392), (2, 332376196), (4, 166188098), (8, 83094049), (19, 34986968), (38, 17493484), (76, 8746742), (89, 7469128), (152, 4373371), (178, 3734564), (356, 1867282), (712, 933641), (1691, 393112), (3382, 196556), (6764, 98278), (13528, 49139)]