399364192

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:420

約数の個数: 72

約数和(自身を含む): 838760832

約数和(自身を除く): 439396640

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 181, 191, 304, 361, 362, 382, 608, 722, 724, 764, 1444, 1448, 1528, 2888, 2896, 3056, 3439, 3629, 5776, 5792, 6112, 6878, 7258, 11552, 13756, 14516, 27512, 29032, 34571, 55024, 58064, 65341, 68951, 69142, 110048, 116128, 130682, 137902, 138284, 261364, 275804, 276568, 522728, 551608, 553136, 656849, 1045456, 1103216, 1106272, 1313698, 2090912, 2206432, 2627396, 5254792, 10509584, 12480131, 21019168, 24960262, 49920524, 99841048, 199682096, 399364192]

約数ペア:

[(1, 399364192), (2, 199682096), (4, 99841048), (8, 49920524), (16, 24960262), (19, 21019168), (32, 12480131), (38, 10509584), (76, 5254792), (152, 2627396), (181, 2206432), (191, 2090912), (304, 1313698), (361, 1106272), (362, 1103216), (382, 1045456), (608, 656849), (722, 553136), (724, 551608), (764, 522728), (1444, 276568), (1448, 275804), (1528, 261364), (2888, 138284), (2896, 137902), (3056, 130682), (3439, 116128), (3629, 110048), (5776, 69142), (5792, 68951), (6112, 65341), (6878, 58064), (7258, 55024), (11552, 34571), (13756, 29032), (14516, 27512)]